Stabilizing compositions for stabilizing materials against ultraviolet light and thermal degradation

ABSTRACT

Stabilizer compositions for stabilizing materials against degradation due to thermal and ultraviolet light exposure are disclosed herein. In some instances, the stabilizer compositions include an ortho-hydroxyl tris-aryl-s-triazine compound; a hindered amine light stabilizer compound; a hindered hydroxybenzoate compound; a phosphite compound, an acid scavenger and/or thioester; and a hindered phenol antioxidant compound

CROSS REFERENCE TO RELATED APPLICATION

The instant application claims priority benefit to co-pending U.S.Provisional Patent Application No. 61/987,133 entitled “StabilizerCompositions for Stabilizing Materials Against Ultraviolet Light andThermal Degradation” filed on May 1, 2014, the entirety of which isincorporated herein by reference.

FIELD OF INVENTION

The instant invention relates to stabilizing compositions. Inparticular, the instant invention relates to compositions that stabilizematerials against ultraviolet light degradation and thermal degradation.

BACKGROUND

Exposure to sunlight and other sources of ultraviolet (UV) radiation(also referred to as UV light) is known to cause degradation of a widevariety of materials. For example, polymeric materials such as plasticsoften discolor, lose gloss and/or become brittle as a result ofprolonged exposure to UV light due primarily to a reduction in themolecular weight of the polymer. Accordingly, a large body of art hasbeen developed directed towards compositions such as UV light absorbersand stabilizers, which are capable of inhibiting such degradation inpolymeric articles.

Exposure to heat is also known to cause degradation of materials,especially polymeric materials. While compositions that reduce orprevent degradation caused by heat have been developed, combining thesecompositions with UV light stabilizer systems has not always yielded thedesired result since the UV light stabilization properties are oftenhindered or completely relinquished (i.e., antagonistic) when combinedwith the heat stabilizer composition(s). Accordingly, there remains anunmet need in the market for a stabilizer composition that can protectmaterials from degradation due to both UV light and thermal exposure.This invention is believed to be an answer to the foregoing need.

SUMMARY

In one aspect, the invention is directed to thermal and ultraviolet (UV)light stabilizing compositions that include an ortho-hydroxyltris-aryl-s-triazine compound; a hindered amine light stabilizercompound; a hindered hydroxybenzoate compound; an acid scavenger; aphosphite compound; and a hindered phenol antioxidant compound.

Another aspect of the invention is directed to thermal and ultraviolet(UV) light stabilizing compositions that include an ortho-hydroxyltris-aryl-s-triazine compound; a hindered amine light stabilizercompound; a hindered hydroxybenzoate compound; a phosphite compound, andan acid scavenger or a thioester.

In another aspect, the invention is directed to stabilized compositionsthat include any of the thermal and UV light stabilizing compositionsdescribed herein and a material to be stabilized.

In a further aspect, the invention is directed to processes forpreparing the aforementioned stabilized composition wherein the materialto be stabilized is combined with any of the thermal and UV lightstabilizing compositions described herein.

In yet a further aspect, the invention is directed to a process forimproving processability of a material selected from the groupconsisting of polyolefins, polyesters, polyethers, polyketones,polyamides, natural and synthetic rubbers, polyurethanes, polystyrenes,high-impact polystyrenes, polyacrylates, polymethacrylates, polyacetals,polyacrylonitriles, polybutadienes, polystyrenes,acrylonitrile-butadiene-styrene, styrene acrylonitrile, acrylate styreneacrylonitrile, cellulosic acetate butyrate, cellulosic polymers,polyimides, polyamideimides, polyetherimides, polyphenylsulfides,polyphenyloxidepolysulfones, polyethersulfones, polyvinylchlorides,polycarbonates, polyketones, aliphatic polyketones, thermoplasticolefins, aminoresin cross-linked polyacrylates and polyesters,polyisocyanate cross-linked polyesters and polyacrylates,phenol/formaldehyde, urea/formaldehyde and melamine/formaldehyde resins,drying and non-drying alkyd resins, alkyd resins, polyester resins,acrylate resins cross-linked with melamine resins, urea resins,isocyanates, isocyanurates, carbamates, and epoxy resins, cross-linkedepoxy resins derived from aliphatic, cycloaliphatic, heterocyclic andaromatic glycidyl compounds, which are cross-linked with anhydrides oramines, polysiloxanes, Michael addition polymers, amines, blocked amineswith activated unsaturated and methylene compounds, ketimines withactivated unsaturated and methylene compounds, polyketimines incombination with unsaturated acrylic polyacetoacetate resins,polyketimines in combination with unsaturated acrylic resins, radiationcurable compositions, epoxymelamine resins, organic dyes, cosmeticproducts, cellulose-based paper formulations, photographic film paper,fibers, waxes, inks, and blends thereof, the process comprising adding astabilizing amount of a stabilizing composition as described herein tothe material.

These and other aspects of the invention are described in more detailherein.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1A-1E are photographs (corresponding to Table 3, Examples 1C, 2C,10, 13, and 14, respectively) showing percentage of gloss retention ofplaques containing a thermoplastic olefin blended with or without lightstabilizing compositions following exposure to extreme thermalconditions.

FIG. 2 is a graph illustrating the results of Examples 15-19.

DETAILED DESCRIPTION

As summarized above, the compositions and processes using the same thathave now been discovered and disclosed herein for the first time aresurprisingly useful for achieving optimal stability against thermal andUV light degradation compared to current commercially availablestabilizer packages. Furthermore, the processes and compositionsdisclosed herein additionally (and surprisingly) provide a stabilizerpackage that has a low release of volatile organic compounds (VOCs), lowodor and low blooming as compared to current commercially availablepolymer stabilizer packages.

As employed above and throughout the disclosure, the following terms anddefinitions are provided to assist the reader. Unless otherwise defined,all terms of art, notations and other scientific terminology used hereinare intended to have the meanings commonly understood by those of skillin the chemical arts. As used herein and in the appended claims, thesingular forms include plural referents unless the context clearlydictates otherwise. Additionally, as used herein and in the appendedclaims, the disclosure of any ranges of amounts or concentrationsincludes the disclosure of any amount or value in the given range.

Throughout this specification the terms and substituents retain theirdefinitions. A comprehensive list of abbreviations utilized by organicchemists (i.e. persons of ordinary skill in the art) appears in thefirst issue of each volume of the Journal of Organic Chemistry. Thelist, which is typically presented in a table entitled “Standard List ofAbbreviations”, is incorporated herein by reference.

The term “hydrocarbyl” is a generic term encompassing aliphatic,alicyclic and aromatic groups having an all-carbon backbone andconsisting of carbon and hydrogen atoms. In certain cases, as definedherein, one or more of the carbon atoms making up the carbon backbonemay be replaced or interrupted by a specified atom or group of atoms,such as by one or more heteroatom of N, O, and/or S. Examples ofhydrocarbyl groups include alkyl, cycloalkyl, cycloalkenyl, carbocyclicaryl, alkenyl, alkynyl, alkylcycloalkyl, cycloalkylalkyl,cycloalkenylalkyl, and carbocyclic aralkyl, alkaryl, aralkenyl andaralkynyl groups. Such hydrocarbyl groups can also be optionallysubstituted by one or more substituents as defined herein. Accordingly,the chemical groups or moieties discussed in the specification andclaims should be understood to include the substituted or unsubstitutedforms. The examples and preferences expressed below also apply to eachof the hydrocarbyl substituent groups or hydrocarbyl-containingsubstituent groups referred to in the various definitions ofsubstituents for compounds of the formulas described herein unless thecontext indicates otherwise.

Preferred non-aromatic hydrocarbyl groups are saturated groups such asalkyl and cycloalkyl groups. Generally, and by way of example, thehydrocarbyl groups can have up to fifty carbon atoms, unless the contextrequires otherwise. Hydrocarbyl groups with from 1 to 30 carbon atomsare preferred. Within the sub-set of hydrocarbyl groups having 1 to 30carbon atoms, particular examples are C₁₋₂₀ hydrocarbyl groups, such asC₁₋₁₂ hydrocarbyl groups (e.g. C₁₋₆ hydrocarbyl groups or C₁₋₁₄hydrocarbyl groups), specific examples being any individual value orcombination of values selected from C₁ through C₃₀ hydrocarbyl groups.

Alkyl is intended to include linear, branched, or cyclic hydrocarbonstructures and combinations thereof. Lower alkyl refers to alkyl groupsof from 1 to 6 carbon atoms. Examples of lower alkyl groups includemethyl, ethyl, propyl, isopropyl, butyl, s-and t-butyl and the like.Preferred alkyl groups are those of C₃₀ or below.

Alkoxy or alkoxyalkyl refers to groups of from 1 to 20 carbon atoms of astraight, branched, cyclic configuration and combinations thereofattached to the parent structure through an oxygen. Examples includemethoxy, ethoxy, propoxy, isopropoxy, cyclopropyloxy, cyclohexyloxy andthe like.

Acyl refers to formyl and to groups of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11and 12 carbon atoms of a straight, branched, cyclic configuration,saturated, unsaturated and aromatic and combinations thereof, attachedto the parent structure through a carbonyl functionality. Examplesinclude acetyl, benzoyl, propionyl, isobutyryl, t-butoxycarbonyl,benzyloxycarbonyl and the like. Lower-acyl refers to groups containingone to six carbons.

References to “carbocyclic” or “cycloalkyl” groups as used herein shall,unless the context indicates otherwise, include both aromatic andnon-aromatic ring systems. Thus, for example, the term includes withinits scope aromatic, non-aromatic, unsaturated, partially saturated andfully saturated carbocyclic ring systems. In general, such groups may bemonocyclic or bicyclic and may contain, for example, 3 to 12 ringmembers, more usually 5 to 10 ring members. Examples of monocyclicgroups are groups containing 3, 4, 5, 6, 7, and 8 ring members, moreusually 3 to 7, and preferably 5 or 6 ring members. Examples of bicyclicgroups are those containing 8, 9, 10, 11 and 12 ring members, and moreusually 9 or 10 ring members. Examples of non-aromaticcarbocycle/cycloalkyl groups include c-propyl, c-butyl, c-pentyl,c-hexyl, and the like. Examples of C₇ to C₁₀ polycyclic hydrocarbonsinclude ring systems such as norbornyl and adamantyl.

Aryl (carbocyclic aryl) refers to a 5- or 6-membered aromatic carbocyclering containing; a bicyclic 9- or 10-membered aromatic ring system; or atricyclic 13- or 14-membered aromatic ring system. The aromatic 6- to14-membered carbocyclic rings include, e.g., substituted orunsubstituted phenyl groups, benzene, naphthalene, indane, tetralin, andfluorene.

Substituted hydrocarbyl, alkyl, aryl, cycloalkyl, alkoxy, etc. refer tothe specific substituent wherein up to three H atoms in each residue arereplaced with alkyl, halogen, haloalkyl, hydroxy, alkoxy, carboxy,carboalkoxy (also referred to as alkoxycarbonyl), carboxamido (alsoreferred to as alkylaminocarbonyl), cyano, carbonyl, nitro, amino,alkylamino, dialkylamino, mercapto, alkylthio, sulfoxide, sulfone,acylamino, amidino, phenyl, benzyl, halobenzyl, heteroaryl, phenoxy,benzyloxy, heteroaryloxy, benzoyl, halobenzoyl, or lower alkylhydroxy.

As summarized above, this invention relates to a thermal and ultraviolet(UV) light stabilizing composition that includes an ortho-hydroxyltris-aryl-s-triazine compound, a hindered amine light stabilizer (HALS)compound, a hindered hydroxybenzoate compound, a phosphite compound, anacid scavenger and a hindered phenol antioxidant compound. In anotherembodiment, the thermal and UV light stabilizing composition alsoincludes, in addition to the foregoing compounds, a thioester compound.

Preferably, the ortho-hydroxy tris-aryl-s-triazine compound is2-(2′-hydroxyphenyl)-1,3,5-triazine compound according to Formula (I):

wherein each of R₃₄ and R₃₅ in Formula (I) is independently chosen fromC₆-C₁₀ aryl optionally substituted, C₁-C₁₀ hydrocarbyl-substitutedamino, C₁-C₁₀ acyl and C₁-C₁₀ alkoxyl; and wherein R₃₆ in Formula (I) isa substituent that is the same or different at from 0 to 4 positions ofthe phenoxy portion of Formula I and is independently chosen fromhydroxyl, C₁-C₁₂ hydrocarbyl, C₁-C₁₂ alkoxyl, C₁-C₁₂ alkoxyester, andC₁-C₁₂ acyl.

Examples of the 2-(2′-hydroxyphenyl)-1,3,5-triazine include4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-octyloxyphenyl)-s-triazine;4,6-bis-(2,4-dimethylphenyl)-2-(2,4-dihydroxyphenyl)-s-triazine;2,4-bis(2,4-dihydroxyphenyl)-6-(4-chlorophenyl)-s-triazine;2,4-bis[2-hydroxy-4-(2-hydroxy-ethoxy)phenyl]-6-(4-chlorophenyl)-s-triazine;2,4-bis[2-hydroxy-4-(2-hydroxy-4-(2-hydroxy-ethoxy)phenyl]-6-(2,4-dimethylphenyl)-s-triazine;2,4-bis[2-hydroxy-4-(2-hydroxyethoxy)phenyl]-6-(4-bromophenyl)-s-triazine;2,4-bis[2-hydroxy-4-(2-acetoxyethoxy)phenyl]-6-(4-chlorophenyl)-s-triazine;2,4-bis(2,4-dihydroxyphenyl)-6-(2,4-dimethylphenyl)-s-triazine;2,4-bis(4-biphenylyl)-6-[2-hydroxy-4-[(octyloxycarbonyl)ethylideneoxy]phenyl]-s-triazine;2,4-bis(4-biphenylyl)-6-[2-hydroxy-4-(2-ethylhexyloxy)phenyl]-s-triazine;2-phenyl-4-[2-hydroxy-4-(3-sec-butyloxy-2-hydroxypropyloxy)phenyl[6-[2-hydroxy-4-(3-sec-amyloxy-2-hydroxypropyloxy)phenyl]-s-triazine;2,4-bis(2,4-dimethylphenyl)-6-[2-hydroxy-4(-3-benzyloxy-2-hydroxypropyloxy)phenyl]-s-triazine;2,4-bis(2-hydroxy-4-n-butyloxyphenyl)-6-(2,4-di-n-butyloxyphenyl)-s-triazine;2,4-bis(2,4-dimethylphenyl)-6-[2-hydroxy-4-(3-nonyloxy-2-hydroxypropylox-y)-5-α-cumylphenyl]-s-triazine;methylenebis-{2,4-bis(2,4-dimethylphenyl)-6-[2-hydroxy-4-(3-butyloxy-2-hydroxypropoxy)phenyl]-s-triazine};methylene bridged dimer mixture bridged in the 3:5′, 5:5′ and 3:3′positions in a 5:4:1 ratio;2,4,6-tris(2-hydroxy-4-isooctyloxycarbonyliso-propylideneoxy-phenyl)-s-triazine;2,4-bis(2,4-dimethylphenyl)-6-(2-hydroxy-4-hexyloxy-5-α-cumylphenyl)-s-triazine;2-(2,4,6-trimethylphenyl)-4,6-bis[2-hydroxy-4-(3-butyloxy-2-hydroxypropyloxy)phenyl]-s-triazine;2,4,6-tris[2-hydroxy-4-(3-sec-butyloxy-2-hydroxypropyloxy)-phenyl]-s-triazine;mixture of4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-(3-dodecyloxy-2-hydroxypropoxy)phenyl)-s-triazineand4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-(3-tridecyloxy-2-hydroxypropoxy)phenyl)-s-triazine;4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4(3-(2-ethylhexyloxy)-2-hydroxypropoxy)-phenyl)-s-triazine;4,6-diphenyl-2-(4-hexyloxy-2-hydroxyphenyl)-s-triazine;2-(4,6-Diphenyl-1,3,5-triazin-2-yl)-5-[2-(2-ethylhexanoyloxy)ethoxy]phenol;2,4,6-tris(2-hydroxy-4-octyloxyphenyl)-1,3,5-triazine; propanoic acid,2,2′,2″-[1,3,5-triazine-2,4,6-triyltris[(3-hydroxy-4,1-phenylene)oxy]]tris-1,1′,1″-trioctylester; propanoic acid,2-[4-[4,6-bis([1,1′-biphenyl]-4-yl)-1,3,5-triazin-2yl]-3-hydroxyphenoxyl]-isooctylester; and combinations thereof.

The HALS compound includes a molecular fragment according to Formula(II):

wherein R₃₁ in Formula (II) is chosen from: hydrogen; OH; C₁-C₂₀hydrocarbyl; —CH₂CN; C₁-C₁₂ acyl; and C₁-C₁₈ alkoxy; R₃₈ in Formula (II)is chosen from: hydrogen; and C₁-C₈ hydrocarbyl; and each of R_(29,)R_(30,) R_(32,) and R₃₃ in Formula (II) is independently chosen fromC₁-C₂₀ hydrocarbyl, or R₂₉ and R₃₀ and/or R₃₂ and R₃₃ in Formula (II)taken together with the carbon to which they are attached form a C₅-C₁₀cycloalkyl; or Formula (IIa)

wherein m in Formula (IIa) is an integer from 1 to 2; R₃₉ is chosenfrom: hydrogen; OH; C₁-C₂₀ hydrocarbyl; —CH₂CN; C₁-C₁₂ acyl; and C₁-C₁₈alkoxy; and each of G₁-G₄ in Formula (IIa) is independently chosen fromC₁-C₂₀ hydrocarbyl.

Examples of the HALS compound includebis(2,2,6,6-tetramethylpiperidin-4-yl) sebacate; bis(2,2,6,6-tetramethylpiperidin-4-yl)succinate;bis(1,2,2,6,6-pentamethylpiperidin-4-yl)sebacate;bis(1-octyloxy-2,2,6,6-tetramethylpiperidin-4-yl)sebacate;bis(1,2,2,6,6-pentamethylpiperidin-4-yl)n-butyl3,5-di-tert-butyl-4-hydroxybenzylmalonate; a condensate of1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinicacid; 2,2,6,6-tetramethylpiperidin-4-yl stearate;2,2,6,6-tetramethylpiperidin-4-yl dodecanate;1,2,2,6,6-pentamethylpiperidin-4-yl stearate;1,2,2,6,6-pentamethylpiperidin-4-yl dodecanate; a condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-tert-octylamino-2,6-dichloro-1,3,5-triazine;tris(2,2,6,6-tetramethylpiperidin-4-yl)nitrilotriacetate;tetrakis(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate;4-benzoyl-2,2,6,6-tetramethylpiperidine;4-stearyloxy-2,2,6,6-tetramethylpiperidine;bis(1,2,2,6,6-pentamethylpiperidyl)-2-n-butyl-2-(2-hydroxy-3,5-di-tert-butylbenzyl)malonate;3-n-octyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decan-2,4-dione;bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl)sebacate;bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl)succinate; a condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-morpholino-2,6-dichloro-1,3,5-triazine; a condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-morpholino-2,6-dichloro-1,3,5-triazine, methylated; a condensate of2-chloro-4,6-bis(4-n-butylamino-2,2,6,6-tetramethylpiperidyl)-1,3,5-triazineand 1,2-bis(3-aminopropylamino)ethane; a condensate of2-chloro-4,6-bis(4-n-butylamino-1,2,2,6,6-pentamethylpiperidyl)-1,3,5-triazineand 1,2-bis-(3-aminopropylamino)ethane;8-acetyl-3-dodecyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione;3-dodecyl-1-(2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidin-2,5-dione;3-dodecyl-1-(1-ethanoyl-2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidin-2,5-dione;3-dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione;a mixture of 4-hexadecyloxy- and4-stearyloxy-2,2,6,6-tetramethylpiperidine; a condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-cyclohexylamino-2,6-dichloro-1,3,5-triazine; a condensate of1,2-bis(3-aminopropylamino)ethane, 2,4,6-trichloro-1,3,5-triazine and4-butylamino-2,2,6,6-tetramethylpiperidine;2-undecyl-7,7,9,9-tetramethyl-1-oxa-3,8-diaza-4-oxospiro[4.5]decane;oxo-piperanzinyl-triazines; a reaction product of7,7,9,9-tetramethyl-2-cycloundecyl-1-oxa-3,8-diaza-4-oxospiro[4.5]decaneand epichlorohydrin; tetrakis(2,2,6,6-tetramethyl-4-piperidyl)butane-1,2,3,4-tetracarboxylate; 1,2,3,4-butanetetracarboxylic acid,tetrakis(1,2,2,6,6-pentamethyl-4-piperidinyl)ester;1,2,3,4-butanetetracarboxylic acid, 1,2,2,6,6-pentamethyl-4-piperdinyltridecyl ester; 1,2,3,4-butanetetracarboxylic acid,2,2,6,6-tetramethyl-4-piperidinyl tridecyl ester;1,2,3,4-butanetetracarboxylic acid, polymer with2,2,6,6-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]-undecane-3,9-diethanol,1,2,2,6,6-pentamethyl-4-piperdinylester; 1,2,3,4-butanetetracarboxylic acid, polymer with2,2,6,6-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]-undecane-3,9-diethanol,2,2,6,6-tetramethyl-4-piperdinyl ester;bis(1-undecanoxy-2,2,6,6-tetramethylpiperidin-4-yl)carbonate;1-(2-hydroxy-2-methylpropoxy)-2,2,6,6-tetramethyl-4-piperdinol;1-(2-hydroxy-2-methylpropoxy)-4-octadecanoyloxy-2,2,6,6-tetramethylpiperidine;1-(4-octadecanoyloxy-2,2,6,6-tetramethylpiperidin-1yloxy)-2-octadecanoyloxy-2-methylpropane;1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-piperdinol; a reaction productof 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-piperdinol anddimethylsuccinate;2,2,4,4-tetramethyl-7-oxa-3,20-diazadispiro[5.1.11.2]heneicosan-21-one;the ester of 2,2,6,6-tetramethyl-4-piperidinol with higher fatty acids;3-dodecyl-1-(2,2,6,6-tetramethyl-4-piperidyl)pyrrolidine-2,5-dione;1H-Pyrrole-2,5-dione, 1-octadecyl-, polymer with(1-methylethenyl)benzene and1-(2,2,6,6-tetramethyl-4-piperidinyl)-1H-pyrrole-2,5-dione;piperazinone,1,1′,1″-[1,3,5-triazine-2,4,6-triyltris[(cyclohexylimino)-2,1-ethanediyl]]tris[3,3,5,5-tetramethyl-;piperazinone,1,1′,1″-[1,3,5-triazine-2,4,6-triyltris[(cyclohexylimino)-2,1-ethanediyl]]tris[3,3,4,5,5-pentamethyl-;the reaction product of7,7,9,9-tetramethyl-2-cycloundecyl-1-oxa-3,8-diaza-4-oxospiro[4.5]decaneand epichlorohydrin; the condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-cyclohexylamino-2,6-dichloro-1,3,5-triazine; the condensate of1,2-bis(3-aminopropylamino)ethane, 2,4,6-trichloro-1,3,5-triazine and4-butylamino-2,2,6,6-tetramethylpiperidine; the condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-morpholino-2,6-dichloro-1,3,5-triazine; the condensate of2-chloro-4,6-bis(4-n-butylamino-2,2,6,6-tetramethylpiperidyl)-1,3,5-triazineand 1,2-bis(3-aminopropylamino)ethane; the condensate of2-chloro-4,6-bis(4-n-butylamino-1,2,2,6,6-pentamethylpiperidyl)-1,3,5-triazineand 1,2-bis-(3-aminopropylamino)ethane;2-[(2-hydroxyethyl)amino]-4,6-bis[N-(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl)butylamino-1,3,5-triazine;propanedioic acid,[(4-methoxyphenyl)-methylene]-bis-(1,2,2,6,6-pentamethyl-4-piperidinyl)ester;tetrakis(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate;benzenepropanoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-,1-[2-[3-[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]-1-oxopropoxy]ethyl]-2,2,6,6-tetramethyl-4-piperidinylester;N-(1-octyloxy-2,2,6,6-tetramethylpiperidin-4-yl)-N′-dodecyloxalamide;tris(2,2,6,6-tetramethylpiperidin-4-yl)nitrilotriacetate;1,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid,bis(1,2,2,6,6-pentamethyl-4-piperidinyl):1,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid,bis(2,2,6,6-tetramethyl-4-piperidinyl); the condensate of1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinicacid; the condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-tert-octylamino-2,6-dichloro-1,3,5-triazine;1,2,3,4-butanetetracarboxylic acid, 1,2,2,6,6-pentamethyl-4-piperidinyltridecyl ester;tetrakis(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate;1,2,3,4-butanetetracarboxylic acid, 2,2,6,6-tetramethyl-4-piperidinyltridecyl ester;tetrakis(1,2,2,6,6-pentamethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate;mixture of2,2,4,4-tetramethyl-21-oxo-7-oxa-3.20-diazaspiro(5.1.11.2)-heneicosane-20-propanoicacid-dodecylester and2,2,4,4-tetramethyl-21-oxo-7-oxa-3.20-diazaspiro(5.1.11.2)-heneicosane-20-propanoicacid-tetradecylester;1H,4H,5H,8H-2,3a,4a,6,7a,8a-hexaazacyclopenta[def]fluorene-4,8-dione,hexahydro-2,6-bis(2,2,6,6-tetramethyl-4-piperidinyl)-;polymethyl[propyl-3-oxy(2′,2′,6′,6′-tetramethyl-4,4′-piperidinyl)]siloxane;polymethyl[propyl-3-oxy(1′,2′,2′,6′,6′-pentamethyl-4,4′-piperidinyl)]siloxane;copolymer of methylmethacrylate with ethyl acrylate and2,2,6,6-tetramethylpiperidin-4-yl acrylate; copolymer of mixed C₂₀ toC₂₄ alpha-olefins and (2,2,6,6-tetramethylpiperidin-4-yl)succinimide;1,2,3,4-butanetetracarboxylic acid, polymer withβ,β,β′,β′-tetramethl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diethanol,1,2,2,6,6-pentamethyl-4-piperidinyl ester; 1,2,3,4-butanetetracarboxylicacid, polymer withβ,β,β′,β′-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diethanol,2,2,6,6-tetramethyl-4-piperidinyl ester copolymer;1,3-benzenedicarboxamide, N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl;1,1′-(1,10-dioxo-1,10-decanediyl)-bis(hexahydro-2,2,4,4,6-pentamethylpyrimidine;ethane diamide, N-(1-acetyl-2,2,6,6-tetramethylpiperidinyl)-N′-dodecyl;formamide, N,N′-1,6-hexanediylbis[N-(2,2,6,6-tetramethyl-4-piperidinyl);D-glucitol, 1,3:2,4-bis-O-(2,2,6,6-tetramethyl-4-piperidinylidene)-;2,2,4,4-tetramethyl-7-oxa-3,20-diaza-21-oxo-dispiro[5.1.11.2]heneicosane;propanamide,2-methyl-N-(2,2,6,6-tetramethyl-4-piperidinyl)-2-[(2,2,6,6-tetramethyl-4-piperidinyl)amino]-;7-oxa-3,20-diazadispiro[5.1.11.2]heneicosane-20-propanoic acid,2,2,4,4-tetramethyl-21-oxo-, dodecyl ester;N-(2,2,6,6-tetramethylpiperidin-4-yl)-β-aminopropionic acid dodecylester; N-(2,2,6,6-tetramethylpiperidin-4-yl)-N′-aminooxalamide;propanamide,N-(2,2,6,6-tetramethyl-4-piperidinyl)-3-[(2,2,6,6-tetramethyl-4-piperidinyl)amino]-;mixture of 4-hexadecyloxy- and4-stearyloxy-2,2,6,6-tetramethylpiperidine;3-dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione;3-dodecyl-1-(1-ethanoyl-2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione;bis(2,2,6,6-tetramethylpiperidin-4-yl)succinate;bis(1,2,2,6,6-pentamethylpiperidin-4-yl)n-butyl3,5-di-tert-butyl-4-hydroxybenzylmalonate;tris(2,2,6,6-tetramethylpiperidin-4-yl)nitrilotriacetate;1,1′-(1,2-ethanediyl)bis(3,3,5,5-tetramethylpiperazinone);4-benzoyl-2,2,6,6-tetramethylpiperidine;4-stearyloxy-2,2,6,6-tetramethylpiperidine;bis(1,2,2,6,6-pentamethylpiperidyl)-2-n-butyl-2-(2-hydroxy-3,5-di-tert-butylbenzyl)malonate;3-n-octyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decan-2,4-dione;bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl)sebacate;bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl)succinate;8-acetyl-3-dodecyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione;3-dodecyl-1-(2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidin-2,5-dione;3-dodecyl-1-(1-ethanoyl-2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidin-2,5-dione;3-dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione;a mixture of 4-hexadecyloxy- and4-stearyloxy-2,2,6,6-tetramethylpiperidine;2-undecyl-7,7,9,9-tetramethyl-1-oxa-3,8-diaza-4-oxospiro[4.5]decane;1,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid,bis(2,2,6,6-tetramethyl-4-piperidinyl) and1,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid,bis(1,2,2,6,6-pentamethyl-4-piperidinyl);N¹-(β-hydroxyethyl)3,3-pentamethylene-5,5-dimethylpiperazin-2-one;N¹-tert-octyl-3,3,5,5-tetramethyl-diazepin-2-one;N^(l)-tert-octyl-3,3-pentamethylene-5,5-hexamethylene-diazepin-2-one;N¹-tert-octyl-3,3-pentamethylene-5,5-dimethylpiperazin-2-one;trans-1,2-cyclohexane-bis-(N¹-5,5-dimethyl-3,3-pentamethylene-2-piperazinone;trans-1,2-cyclohexane-bis-(N¹-3,3,5,5-dispiropentamethylene-2-piperazinone);N¹-isopropyl-1,4-diazadispiro-(3,3,5,5)pentamethylene-2-piperazinone;N¹-isopropyl-1,4-diazadispiro-3,3-pentamethylene-5,5-tetramethylene-2-piperazinone;N¹-isopropyl-5,5-dimethyl-3,3-pentamethylene-2-piperazinone;trans-1,2-cyclohexane-bis-N¹-(dimethyl-3,3-pentamethylene-2-piperazinone);N¹-octyl-5,5-dimethyl-3,3-pentamethylene-1,4-diazepin-2-one;N¹-octyl-1,4-diazadispiro-(3,3,5,5)pentamethylene-1,5-diazepin-2-one;and mixtures thereof.

The hindered hydroxybenzoate compound is a compound according to Formula(III):

wherein R₁₇ in Formula (III) is a C₁-C₈ alkyl and R₁₈ in Formula (III)is a C₁-C₂₄alkyl or substituted or unsubstituted C₆-C₂₄aryl. Inparticular, the hindered hydroxybenzoate compound is2,4-di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate; hexadecyl3,5-di-tert-butyl-4-hydroxybenzoate; octadecyl3,5-di-tert-butyl-4-hydroxybenzoate; octyl3,5-di-tert-butyl-4-hydroxybenzoate; tetradecyl3,5-di-tert-butyl-4-hydroxybenzoate; behenylyl3,5-di-tert-butyl-4-hydroxybenzoate; 2-methyl-4,6-di-tert-butylphenyl3,5-di-tert-butyl-4-hydroxybenzoate or butyl3-[3-t-butyl-4-(3,5-di-t-butyl-4-hydroxybenzoyloxy)phenyl]propionate

The acid scavenger used in the thermal and UV light stabilizingcomposition may include one or more of the following compounds: zincoxide, calcium lactate, natural and synthetic hydrotalcites, natural andsynthetic hydrocalumites, alkali metal salts and alkaline earth metalsalts of higher fatty acids, calcium stearate, zinc stearate, magnesiumbehenate, magnesium stearate, sodium stearate, sodium ricinoleate andpotassium palmitate, antimony pyrocatecholate, zinc pyrocatecholate. Inone example, the acid scavenger includes magnesium oxide, aluminumoxide, magnesium hydroxide, aluminum hydroxide, carbonates thereof ormixtures thereof. A specific example of an acid scavenger includesDHT-4A (CAS No. 11097-59-9), a magnesium aluminum hydroxide carbonatehydrate that is a synthetic hydrotalcite compound.

The hindered phenol antioxidant compound includes a molecular fragmentaccording to one or more of Formula (IVa), (IVb), or (IVc):

wherein R₁₈ in Formulae (IVa), (IVb) and (IVc) is chosen from hydrogenand a C₁₋₄ hydrocarbyl; R₁₉ and R₂₀ in Formulae (IVa), (IVb) and (IVc)are each individually chosen from hydrogen and a C₁-C₂₀ hydrocarbyl; andR₃₇ in Formulae (IVa), (IVb) and (IVc) is chosen from C₁-C₁₂hydrocarbyl. In one embodiment, R₁₈ in Formulae (IVa), (IVb) and (IVc)and R₃₇ are chosen from methyl and t-butyl. Examples of the hinderedphenol antioxidant compound include(1,3,5-Tris(4-t-butyl-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-triazine-2,4,6-(1H,3H,5H)-trione;1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione;1,1,3-Tris(2′-methyl-4′-hydroxy-5′-t-butylphenyl)butane; Triethyleneglycol bis[3-(3-t-butyl-4-hydroxy-5-methylphenyl)propionate];4,4′-Thiobis(2-t-butyl-5-methylphenol); 2,2′-Thiodiethylenebis[3-(3-t-butyl-4-hydroxyl-5-methylphenyl)propionate]; Octadecyl3-(3′-t-butyl-4′-hydroxy-5′-methylphenyl)propionate;Tetrakismethylene(3-t-butyl-4-hydroxy-5-methylhydrocinnamate)methane;N,N′-Hexamethylenebis[3-(3-t-butyl-4-hydroxy-5-methylphenyl)propionamide];Di(4-tertiarybutyl-3-hydroxy-2,6-dimethyl benzyl) thiodipropionate; andoctadecyl 3,5-di-(tert)-butyl-4-hydroxyhydrocinnamate.

The phosphite used in the thermal and UV light stabilizing compositionmay be a hindered arylalkyl phosphite or a trisarylphosphite, ormixtures thereof. The hindered arylalkyl phosphite is a compoundaccording to Formula (V):

wherein R¹, R², R³, R⁴, R⁵, R⁶, R⁷, R⁸, R⁹, and R¹⁰ in Formula (V) areeach individually selected from hydrogen, C₁-C₁₂ alkyl, C₃-C₁₂cycloalkyl, C₄-C₁₂ alkyl cycloalkyl, C₆-C₁₀ aryl, and C₇-C₁₂ alkylaryl,wherein R¹ and R⁵ together comprise at least 5 carbons and at least oneof R¹ and R⁵ comprises a tertiary carbon, wherein R⁶ and R¹⁰ togethercomprise at least 5 carbons and at least one of R⁶ and R¹⁰ comprises atertiary carbon. Examples of the hindered arylalkyl phosphite include:bis-(2,6-di-t-butyl-4-methlphenyl)pentaerythritol diphosphite,(bis-(2,4-dicumylphenyl)pentaerythritol diphosphite,bis-(2,4-di-t-butyl-phenyl)pentaerythritol diphosphite, andbis-(2,4,6-tri-t-butyl-phenyl)pentaerythritol diphosphate.

The trisarylphosphite is a compound according to Formula (VI):

wherein R^(16,) R¹⁷, R⁴⁰, and R⁴² in Formula (VI) are each individuallyselected from hydrogen, C₁-C₂₀ alkyl, C₃-C₂₀ cycloalkyl, C₄-C₂₀ alkylcycloalkyl, C₆-C₁₀ aryl, and C₇-C₂₀ alkylaryl. Examples of thetrisarylphosphite include: tris-(2,4-di-t-butylphenyl)phosphite,tris(4-nonylphenyl) phosphite and triphenyl phosphite.

The thioester compound is dilauryl thiodipropionate, distearylthiodipropionate, pentaerythrithol tetrakis-(3-dodecylthipropionate),tetra-alkyl thioethyl thiodisuccinate,2,12-dihydroxy-4,10-dithia-7-oxatridecamethylenebis[3-(dodecylthio)propionate], polyalkanol esters of alkylthio-alkanoicacids, or dialkyl 3,3′-thiodipropionate.

In one formulation of the thermal and UV light stabilizing composition,the composition includes between about 1.00 wt. % to about 10.00 wt. %(preferably about 2.00 wt. % to about 6.00 wt%) of the ortho-hydroxyltris-aryl-s-triazine compound, between about 20.00 wt. % to about 50.00wt. % (preferably about 25.00 wt. % to about 35.00 wt. %) of thehindered amine light stabilizer compound, between about 20.00 wt. % toabout 50.00 wt. % (preferably about 25.00 wt. % to about 35.00 wt. %) ofthe hindered hydroxybenzoate compound, between 1 wt. % to about 10 wt. %(preferably about 2.0 wt. % to about 8.0 wt. %) of the acid scavenger,between about 1 wt. % to about 10 wt. % (preferably about 2.00 wt. % toabout 6.00 wt. %) of the hindered phenol antioxidant compound, andbetween about 5.00 wt. % to about 40.00 wt. % (preferably about 20.00wt. % to about 30.00 wt. %) of the phosphite compound where the wt. % ofeach component is based on the total weight of the thermal and UV lightstabilizing composition.

In another embodiment, a formulation of the thermal and UV lightstabilizing composition includes between about 1.00 wt. % to about 10.00wt. % (preferably about 2.00 wt. % to about 6.00 wt. %) of theortho-hydroxyl tris-aryl-s-triazine compound, between about 20.00 wt. %to about 50.00 wt. % (preferably about 30.00 wt. % to about 40.00 wt. %)of the hindered amine light stabilizer compound, between about 20.00 wt.% to about 50.00 wt. % (preferably about 30.00 wt. % to about 40.00 wt.%) of the hindered hydroxybenzoate compound, between 1 wt. % to about 10wt. % (preferably about 2.00 wt. % to about 8.00 wt. %) of the acidscavenger, between about 1 wt. % to about 10 wt. % (preferably about2.00 wt. % to about 6.00 wt. %) of the hindered phenol antioxidantcompound, between about 5.00 wt. % to about 25.00 wt. % (preferablyabout 6.00 wt. % to about 12.00 wt. %) of the phosphite compound, andbetween about 1.00 wt. % to about 15.00 wt. % (preferably about 5.00 wt.% to 10.00 wt. %) of the thioester compound, where the wt. % of eachcomponent is based on the total weight of the thermal and UV lightstabilizing composition.

In a particular embodiment, a formulation of the thermal and UV lightstabilizing composition includes about 4 wt. % of the ortho-hydroxyltris-aryl-s-triazine compound, about 34 wt. % of the hindered aminelight stabilizer compound, about 34 wt. % of the hinderedhydroxybenzoate compound, about 7 wt. % of the acid scavenger, about 4wt. % of the hindered phenol antioxidant compound, about 10 wt. % of thephosphite compound and about 7 wt. % of the thioester compound, wherethe wt. % of each component is based on the total weight of the thermaland UV light stabilizing composition.

In another particular embodiment, a formulation of the thermal and UVlight stabilizing composition includes about 4 wt. % of theortho-hydroxyl tris-aryl-s-triazine compound, about 30 wt. % of thehindered amine light stabilizer compound, about 30. wt. % of thehindered hydroxybenzoate compound, about 7 wt. % of the acid scavenger,about 4 wt. % of the hindered phenol antioxidant compound, and about 25wt. % of the phosphite compound, where the wt. % of each component isbased on the total weight of the thermal and UV light stabilizingcomposition.

The thermal and UV light stabilizing composition can be combined with amaterial to be stabilized, e.g., a polymer, in any manner known in theart, thus forming a composition that is a stabilized material (alsoreferred to herein as a stabilized composition or a composition).Materials to be stabilized, to which the thermal and UV lightstabilizing composition may be combined with, include, but are notlimited to, polymers such as polyolefins, polyesters, polyethers,polyketones, polyamides, natural and synthetic rubbers, polyurethanes,polystyrenes, high-impact polystyrenes, polyacrylates,polymethacrylates, polyacetals, polyacrylonitriles, polybutadienes,polystyrenes, acrylonitrile-butadiene-styrene, styrene acrylonitrile,acrylate styrene acrylonitrile, cellulosic acetate butyrate, cellulosicpolymers, polyimides, polyamideimides, polyetherimides,polyphenylsulfides, polyphenyloxidepolysulfones, polyethersulfones,polyvinylchlorides, polycarbonates, polyketones, aliphatic polyketones,thermoplastic olefins, aminoresin cross-linked polyacrylates andpolyesters, polyisocyanate cross-linked polyesters and polyacrylates,phenol/formaldehyde, urea/formaldehyde and melamine/formaldehyde resins,drying and non-drying alkyd resins, alkyd resins, polyester resins,acrylate resins cross-linked with melamine resins, urea resins,isocyanates, isocyanurates, carbamates, and epoxy resins, cross-linkedepoxy resins derived from aliphatic, cycloaliphatic, heterocyclic andaromatic glycidyl compounds, which are cross-linked with anhydrides oramines, polysiloxanes, Michael addition polymers, amines, blocked amineswith activated unsaturated and methylene compounds, ketimines withactivated unsaturated and methylene compounds, polyketimines incombination with unsaturated acrylic polyacetoacetate resins,polyketimines in combination with unsaturated acrylic resins, radiationcurable compositions, epoxymelamine resins, as well as organic dyes,cosmetic products, cellulose-based paper formulations, photographic filmpaper, fibers, waxes, inks, and blends thereof.

Preferably, the material to be stabilized is a polymer, such asthermoplastic olefins, acrylonitrile-butadiene-styrene, polyesters,polyvinylchloride, polyamides, polyurethanes, or homo- and copolymers ofpropylene, isobutylene, butene, methylpentene, hexene, heptene, octene,isoprene, butadiene, hexadiene, dicyclopentadiene, ethylidene,cyclopentene and norbornene. More preferably, the material to bestabilized is polypropylene and thermoplastic olefins.

In one embodiment, it is contemplated that the material to be stabilizedmay be a material or item used in the construction or renovation ofbuildings, e.g., homes, offices, warehouses, and the like. For example,the material to be stabilized may include vinyl siding, vinyl sidingtrim, shutters, gable vents, eaves, fascia, soffits, moldings, roofingshingles, roofing underlayment or base sheets, roofing membranes, battensystems, batten extenders, flashing, tile pans, ridge vents, weatherblocks, hip and ridge systems (also known as hip and ridge shingles),eave risers, taper strips, gable end wedges, rake trim, geomembranes,composite deck materials, railings, window frames, and other materialsand items used in the construction or renovation of buildings.

In one embodiment, the material to be stabilized, and thermal and UVlight stabilizing composition are combined to form a “master batch”composition. In one embodiment, the master batch composition includesbetween 10 wt. % to about 80 wt. % of the thermal and UV lightstabilizing compound, based on the total weight of the master batchcomposition, with the remainder being the material to be stabilized. Ina more preferred embodiment, the master batch composition includesbetween 30 wt. % to about 60 wt. % of the thermal and UV lightstabilizing composition, based on the total weight of the master batchcomposition, with the remainder being the material to be stabilized. Inanother embodiment, the master batch composition includes between 40 wt.% to about 50 wt. % of the thermal and UV light stabilizing composition,based on the total weight of the master batch composition, with theremainder being the material to be stabilized.

One embodiment includes a masterbatch concentrate comprising astabilizing composition according to any of the embodiments describedherein and at least one organic material identical or compatible with amaterial to be stabilized, wherein the stabilizing composition ispresent in an amount from 10 wt. % to 90 wt. % based on the total weightof the master batch concentrate.

In certain embodiments, the amount of thermal and UV stabilizingcomposition as described herein in the stabilized composition forend-use is present at any point in the range from 0.01 wt. % to 5 wt. %,based on the total weight of the material to be stabilized. In aparticular embodiment, the amount of thermal and UV stabilizingcomposition in the stabilized composition for end-use is present at anypoint in the range from 0.05 wt. % to 2 wt. %, based on the total weightof the material to be stabilized.

The specific components of the thermal and UV stabilizing composition asdescribed herein can be present in the stabilized composition in variousamounts depending on the material to be stabilized and/or the level ofdesired protection. For example, the amount of the ortho-hydroxyltris-aryl-s-triazine compound in the stabilized composition for end-usecan range from about 0.002 wt. % to about 0.50 wt. %, preferably 0.004wt. % to about 0.20 wt. %, more preferably 0.005 wt. % to about 0.1 wt.% based on the total weight of stabilized composition.

The amount of the hindered amine light stabilizer compound in thestabilized composition is from about 0.01 wt. % to about 1.20 wt. %,preferably from about 0.02 wt. % to about 0.80 wt. %, more preferablyfrom 0.03 wt. % to about 0.62 wt. %, based on the total weight of thestabilized composition.

The amount of the hindered hydroxybenzoate compound in the stabilizedcomposition is from about 0.01 wt. % to about 1.20 wt. %, preferablyfrom about 0.02 wt. % to about 0.80 wt. %, more preferably from about0.03 wt. % to about 0.62 wt. %, based on the total weight of thestabilized composition.

The amount of the acid scavenger in the stabilized composition is fromabout 0.001 wt. % to about 0.50 wt. %, preferably from about 0.003 wt. %to about 0.25 wt. %, more preferably from 0.006 wt. % to about 0.14 wt.%, based on the total weight of the stabilized composition.

The amount of the hindered phenol antioxidant compound in the stabilizedcomposition is from about 0.001 wt. % to about 0.50 wt. %, preferablyfrom about 0.002 wt. % to about 0.25 wt. %, more preferably from about0.004 wt. % to about 0.085 wt. %, based on the total weight of thestabilized composition.

The amount of the phosphite compound in the stabilized composition isfrom about 0.005 wt. % to about 1.00 wt. %, preferably from about 0.01wt. % to about 0.80 wt. %, more preferably from about 0.02 wt. % toabout 0.5 wt. %, based on the total weight of the stabilizedcomposition.

The amount of the thioester compound in the stabilized composition isfrom about 0.001 wt. % to about 0.80 wt. %, preferably from about 0.003wt. % to about 0.4 wt. %, more preferably from about 0.006 wt. % toabout 0.2 wt. %, based on the total weight of the stabilizedcomposition.

This application also contemplates a method of preparing the compositionabove by combining the thermal and UV light stabilizing composition withthe material to be stabilized. The term “combining” or “combined” isintended to include all manners in which the thermal and UV lightstabilizing compositions can be combined, and includes, for example,intermixing, admixing, integrating, mixing, blending, and the like.Additionally, it is noted that the thermal and UV light stabilizingcomposition and the material to be stabilized may be combined in anyorder, i.e., the thermal and UV light stabilizing composition can beadded to the material to be stabilized, or vice versa, or the thermaland UV light stabilizing composition and the material to be stabilizedcan be simultaneously added to a vessel.

The material to be stabilized and the thermal and UV light stabilizingcomposition can be combined by blending or compounding the components ina kneading apparatus such as a single or twin screw extruder, Banburymixer, or hot rollers. The processing parameters and the use of suchkneading apparatus are well known to those skilled in the art.

As would be apparent to those skilled in the art of making plasticmaterials, in addition to the material to be stabilized and the thermaland UV light stabilizing composition, the composition of the presentinvention may also include conventional additives including, but notlimited to, metal deactivators, nitrones, lactones, co-stabilizers,nucleating agents, clarifying agents, neutralizers, metallic stearates,metal oxides, hydrotalcites, fillers and reinforcing agents,plasticizers, lubricants, emulsifiers, pigments, rheological additives,catalysts, level agents, optical brighteners, flame retardant agents,anti-static agents and blowing agents.

The invention includes at least the following embodiments:

Embodiment 1

A thermal and ultraviolet (UV) light stabilizing composition comprising:

-   -   an ortho-hydroxyl tris-aryl-s-triazine compound;    -   a hindered amine light stabilizer compound;    -   a hindered hydroxybenzoate compound;    -   an acid scavenger;    -   a phosphite compound; and    -   a hindered phenol antioxidant compound.

Embodiment 2

The thermal and UV light stabilizing composition according to embodiment1, further comprising a thioester compound.

Embodiment 3

The thermal and UV light stabilizing composition according to any one ofthe preceding embodiments, wherein the ortho-hydroxyltris-aryl-s-triazine compound is a 2-(2′-hydroxyphenyl)-1,3,5-triazinecompound according to Formula (I):

wherein each of R₃₄ and R₃₅ in Formula (I) is independently chosen fromC₆-C₁₀ aryl optionally substituted, C₁-C₁₀ hydrocarbyl-substitutedamino, C₁-C₁₀ acyl and C₁-C₁₀ alkoxyl; and wherein R₃₆ in Formula (I) isa substituent that is the same or different at from 0 to 4 positions ofthe phenoxy portion of Formula I and is independently chosen fromhydroxyl, C₁-C₁₂ hydrocarbyl, C₁-C₁₂ alkoxyl, C₁-C₁₂ alkoxyester, andC₁-C₁₂ acyl.

Embodiment 4

The thermal and UV light stabilizing composition according to embodiment3, wherein the 2-(2′-hydroxyphenyl)-1,3,5-triazine compound is chosenfrom:4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-octyloxyphenyl)-s-triazine;4,6-bis-(2,4-dimethylphenyl)-2-(2,4-dihydroxyphenyl)-s-triazine;2,4-bis(2,4-dihydroxyphenyl)-6-(4-chlorophenyl)-s-triazine;2,4-bis[2-hydroxy-4-(2-hydroxy-ethoxy)phenyl]-6-(4-chlorophenyl)-s-triazine;2,4-bis[2-hydroxy-4-(2-hydroxy-4-(2-hydroxy-ethoxy)phenyl]6-(2,4-dimethylphenyl)-s-triazine;2,4-bis[2-hydroxy-4-(2-hydroxyethoxy)phenyl]-6-(4-bromophenyl)-s-triazine;2,4-bis[2-hydroxy-4-(2-acetoxyethoxy)phenyl]-6-(4-chlorophenyl)-s-triazine;2,4-bis(2,4-dihydroxyphenyl)-6-(2,4-dimethylphenyl)-s-triazine;2,4-bis(4-biphenylyl)-6-[2-hydroxy-4-[(octyloxycarbonyl)ethylideneoxy]phenyl]-s-triazine;2,4-bis(4-biphenylyl)-6-[2-hydroxy-4-(2-ethylhexyloxy)phenyl]-s-triazine;2-phenyl-4-[2-hydroxy-4-(3-sec-butyloxy-2-hydroxypropyloxy)phenyl]-6-[2-hydroxy-4-(3-sec-amyloxy-2-hydroxypropyloxy)phenyl]-s-triazine;2,4-bis(2,4-dimethylphenyl)-6-hydroxy-4(-3-benzyloxy-2-hydroxypropyloxy)phenyl]-s-triazine;2,4-bis(2-hydroxy-4-n-butyloxyphenyl)-6-(2,4-di-n-butyloxyphenyl)-s-triazine;2,4-bis(2,4-dimethylphenyl)-6-[2-hydroxy-4-(3-nonyloxy-2-hydroxypropylox-y)-5-α-cumylphenyl]-s-triazine;methylenebis-{2,4-bis(2,4-dimethylphenyl)-6[2-hydroxy-4-(3-butyloxy-2-hydroxypropoxy)phenyl]-s-triazine};methylene bridged dimer mixture bridged in the 3:5′, 5:5′ and 3:3′positions in a 5:4:1 ratio;2,4,6-tris(2-hydroxy-4-isooctyloxycarbonyliso-propylideneoxy-phenyl)-s-triazine;2,4-bis(2,4-dimethylphenyl)-6-(2-hydroxy-4-hexyloxy-5-α-cumylphenyl)-s-triazine;2-(2,4,6-trimethylphenyl)-4,6-bis[2-hydroxy-4-(3-butyloxy-2-hydroxypropyloxy)phenyl]-s-triazine;2,4,6-tris[2-hydroxy-4-(3-sec-butyloxy-2-hydroxypropyloxy)-phenyl]-s-triazine;mixture of4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-(3-dodecyloxy-2-hydroxypropoxy)phenyl)-s-triazineand4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-(3-tridecyloxy-2-hydroxypropoxy)phenyl)-s-triazine;4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4(3-(2-ethylhexyloxy)-2-hydroxypropoxy)-phenyl)-s-triazine;4,6-diphenyl-2-(4-hexyloxy-2-hydroxyphenyl)-s-triazine;2-(4,6-Diphenyl-1,3,5-triazin-2-yl)-5-[2-(2-ethylhexanoyloxy)ethoxy]phenol;2,4,6-tris(2-hydroxy-4-octyloxyphenyl)-1,3,5-triazine; propanoic acid,2,2′,2″-[1,3,5-triazine-2,4,6-triyltris[(3-hydroxy-4,1-phenylene)oxy]]tris-1,1′,1″-trioctylester; propanoic acid,2-[4-[4,6-bis([1,1′-biphenyl]-4-yl)-1,3,5-triazin-2yl]-3-hydroxyphenoxyl]-isooctylester; and combinations thereof.

Embodiment 5

The thermal and UV light stabilizing composition according to any one ofthe preceding embodiments, wherein the hindered amine light stabilizercompound comprises a molecular fragment according to Formula (II):

-   wherein-   R₃₁ in Formula (II) is chosen from: hydrogen; OH; C₁-C₂₀    hydrocarbyl; —CH₂CN; C₁-C₁₂ acyl; and C₁-C₁₈ alkoxy;-   R₃₈ in Formula (II) is chosen from: hydrogen; and C₁-C₈ hydrocarbyl;    and-   each of R_(29,) R_(30,) R_(32,) and R₃₃ in Formula (II) is    independently chosen from C₁-C₂₀ hydrocarbyl, or R₂₉ and R₃₀ and/or    R₃₂ and R₃₃ in Formula (II) taken together with the carbon to which    they are attached form a C₅-C₁₀ cycloalkyl;-   or Formula (IIa)

wherein m in Formula (IIa) is an integer from 1 to 2; R₃₉ in Formula(IIa) is chosen from: hydrogen; OH; C₁-C₂₀ hydrocarbyl; —CH₂CN; C₁-C₁₂acyl; and C₁-C₁₈ alkoxy; and each of G₁-G₄ in Formula (IIa) isindependently chosen from C₁-C₂₀ hydrocarbyl.

Embodiment 6

The thermal and UV light stabilizing composition according to any one ofthe preceding embodiments, wherein the hindered amine light stabilizeris chosen from: bis(2,2,6,6-tetramethylpiperidin-4-yl) sebacate;bis(2,2,6,6-tetramethylpiperidin-4-yl)succinate;bis(1,2,2,6,6-pentamethylpiperidin-4-yl)sebacate;bis(1-octyloxy-2,2,6,6-tetramethylpiperidin-4-yl)sebacate;bis(1,2,2,6,6-pentamethylpiperidin-4-yl)n-butyl3,5-di-tert-butyl-4-hydroxybenzylmalonate; a condensate of1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinicacid; 2,2,6,6-tetramethylpiperidin-4-yl stearate;2,2,6,6-tetramethylpiperidin-4-yl dodecanate;1,2,2,6,6-pentamethylpiperidin-4-yl stearate;1,2,2,6,6-pentamethylpiperidin-4-yl dodecanate; a condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-tert-octylamino-2,6-dichloro-1,3,5-triazine;tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate;tetrakis(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate;4-benzoyl-2,2,6,6-tetramethylpiperidine;4-stearyloxy-2,2,6,6-tetramethylpiperidine;bis(1,2,2,6,6-pentamethylpiperidyl)-2-n-butyl-2-(2-hydroxy-3,5-di-tert-butylbenzyl)malonate;3-n-octyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decan-2,4-dione;bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl)sebacate;bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl)succinate; a condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-morpholino-2,6-dichloro-1,3,5-triazine; a condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-morpholino-2,6-dichloro-1,3,5-triazine, methylated; a condensate of2-chloro-4,6-bis(4-n-butylamino-2,2,6,6-tetramethylpiperidyl)-1,3,5-triazineand 1,2-bis(3-aminopropylamino)ethane; a condensate of2-chloro-4,6-bis(4-n-butylamino-1,2,2,6,6-pentamethylpiperidyl)-1,3,5-triazineand 1,2-bis-(3-aminopropylamino)ethane;8-acetyl-3-dodecyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione;3-dodecyl-1-(2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidin-2,5-dione;3-dodecyl-1-(1-ethanoyl-2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidin-2,5-dione;3-dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione;a mixture of 4-hexadecyloxy- and4-stearyloxy-2,2,6,6-tetramethylpiperidine; a condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-cyclohexylamino-2,6-dichloro-1,3,5-triazine; a condensate of1,2-bis(3-aminopropylamino)ethane, 2,4,6-trichloro-1,3,5-triazine and4-butylamino-2,2,6,6-tetramethylpiperidine;2-undecyl-7,7,9,9-tetramethyl-1-oxa-3,8-diaza-4-oxospiro[4.5]decane;oxo-piperanzinyl-triazines; a reaction product of7,7,9,9-tetramethyl-2-cycloundecyl-1-oxa-3,8-diaza-4-oxospiro[4.5]decaneand epichlorohydrin; tetrakis(2,2,6,6-tetramethyl-4-piperidyl)butane-1,2,3,4-tetracarboxylate; 1,2,3,4-butanetetracarboxylic acid,tetrakis(1,2,2,6,6-pentamethyl-4-piperidinyl)ester;1,2,3,4-butanetetracarboxylic acid, 1,2,2,6,6-pentamethyl-4-piperdinyltridecyl ester; 1,2,3,4-butanetetracarboxylic acid,2,2,6,6-tetramethyl-4-piperidinyl tridecyl ester;1,2,3,4-butanetetracarboxylic acid, polymer with2,2,6,6-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]-undecane-3,9-diethanol,1,2,2,6,6-pentamethyl-4-piperdinylester; 1,2,3,4-butanetetracarboxylic acid, polymer with2,2,6,6-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]-undecane-3,9-diethanol,2,2,6,6-tetramethyl-4-piperdinyl ester;bis(1-undecanoxy-2,2,6,6-tetramethylpiperidin-4-yl)carbonate;1-(2-hydroxy-2-methylpropoxy)-2,2,6,6-tetramethyl-4-piperdinol;1-(2-hydroxy-2-methylpropoxy)-4-octadecanoyloxy-2,2,6,6-tetramethylpiperidine;1-(4-octadecanoyloxy-2,2,6,6-tetramethylpiperidin-1yloxy)-2-octadecanoyloxy-2-methylpropane;1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-piperdinol; a reaction productof 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-piperdinol anddimethylsuccinate;2,2,4,4-tetramethyl-7-oxa-3,20-diazadispiro[5.1.11.2]heneicosan-21-one;the ester of 2,2,6,6-tetramethyl-4-piperidinol with higher fatty acids;3-dodecyl-1-(2,2,6,6-tetramethyl-4-piperidyl)pyrrolidine-2,5-dione;1H-Pyrrole-2,5-dione, 1-octadecyl-, polymer with(1-methylethenyl)benzene and1-(2,2,6,6-tetramethyl-4-piperidinyl)-1H-pyrrole-2,5-dione;piperazinone,1,1′,1″-[1,3,5-triazine-2,4,6-triyltris[(cyclohexylimino)-2,1-ethanediyl]]tris[3,3,5,5-tetramethyl-;piperazinone,1,1′,1″-[1,3,5-triazine-2,4,6-triyltris[(cyclohexylimino)-2,1-ethanediyl]]tris[3,3,4,5,5-pentamethyl-;the reaction product of7,7,9,9-tetramethyl-2-cycloundecyl-1-oxa-3,8-diaza-4-oxospiro[4.5]decaneand epichlorohydrin; the condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-cyclohexylamino-2,6-dichloro-1,3,5-triazine; the condensate of1,2-bis(3-aminopropylamino)ethane, 2,4,6-trichloro-1,3,5-triazine and4-butylamino-2,2,6,6-tetramethylpiperidine; the condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-morpholino-2,6-dichloro-1,3,5-triazine; the condensate of2-chloro-4,6-bis(4-n-butylamino-2,2,6,6-tetramethylpiperidyl)-1,3,5-triazineand 1,2-bis(3-aminopropylamino)ethane; the condensate of2-chloro-4,6-bis(4-n-butylamino-1,2,2,6,6-pentamethylpiperdyl)-1,3,5-triazineand 1,2-bis-(3-aminopropylamino)ethane;2-[(2-hydroxyethyl)amino]-4,6-bis[N-(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl)butylamino-1,3,5-triazine;propanedioic acid,[(4-methoxyphenyl)-methylene]-bis-(1,2,2,6,6-pentamethyl-4-piperidinyl)ester;tetrakis(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate;benzenepropanoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-,1-[2-[3-[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]-1-oxopropoxy]ethyl]-2,2,6,6-tetramethyl-4-piperidinylester;N-(1-octyloxy-2,2,6,6-tetramethylpiperidin-4-yl)-N′-dodecyloxalamide;tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate;1,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid,bis(1,2,2,6,6-pentamethyl-4-piperidinyl):1,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid,bis(2,2,6,6-tetramethyl-4-piperidinyl); the condensate of1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinicacid; the condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-tert-octylamino-2,6-dichloro-1,3,5-triazine;1,2,3,4-butanetetracarboxylic acid, 1,2,2,6,6-pentamethyl-4-piperidinyltridecyl ester;tetrakis(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate;1,2,3,4-butanetetracarboxylic acid, 2,2,6,6-tetramethyl-4-piperidinyltridecyl ester;tetrakis(1,2,2,6,6-pentamethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate;mixture of2,2,4,4-tetramethyl-21-oxo-7-oxa-3.20-diazaspiro(5.1.11.2)-heneicosane-20-propanoicacid-dodecylester and2,2,4,4-tetramethyl-21-oxo-7-oxa-3.20-diazaspiro(5.1.11.2)-heneicosane-20-propanoicacid-tetradecylester;1H,4H,5H,8H-2,3a,4a,6,7a,8a-hexaazacyclopenta[def]fluorene-4,8-dione,hexahydro-2,6-bis(2,2,6,6-tetramethyl-4-piperidinyl)-;polymethyl[propyl-3-oxy(2′,2′,6′,6′-tetramethyl-4,4′-piperidinyl)]siloxane;polymethyl[propyl-3-oxy(1′,2′,2′,6′,6′-pentamethyl-4,4′-piperidinyl)]siloxane;copolymer of methylmethacrylate with ethyl acrylate and2,2,6,6-tetramethylpiperidin-4-yl acrylate; copolymer of mixed C₂₀ toC₂₄ alpha-olefins and (2,2,6,6-tetramethylpiperidin-4-yl)succinimide;1,2,3,4-butanetetracarboxylic acid, polymer withβ,β,β′,β′-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diethanol,1,2,2,6,6-pentamethyl-4-piperidinyl ester; 1,2,3,4-butanetetracarboxylicacid, polymer withβ,β,β′,β′-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diethanol,2,2,6,6-tetramethyl-4-piperidinyl ester copolymer;1,3-benzenedicarboxamide, N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl;1,1′-(1,10-dioxo-1,10-decanediyl)-bis(hexahydro-2,2,4,4,6-pentamethylpyrimidine;ethane diamide, N-(1-acetyl-2,2,6,6-tetramethylpiperidinyl)-N′-dodecyl;formamide, N,N′-1,6-hexanediylbis[N-(2,2,6,6-tetramethyl-4-piperidinyl);D-glucitol, 1,3:2,4-bis-O-(2,2,6,6-tetramethyl-4-piperidinylidene)-;2,2,4,4-tetramethyl-7-oxa-3,20-diaza-21-oxo-dispiro[5.1.11.2]heneicosane;propanamide,2-methyl-N-(2,2,6,6-tetramethyl-4-piperidinyl)-2-[(2,2,6,6-tetramethyl-4-piperidinyl)amino]-;7-oxa-3,20-diazadispiro[5.1.11.2]heneicosane-20-propanoic acid,2,2,4,4-tetramethyl-21-oxo-, dodecyl ester;N-(2,2,6,6-tetramethylpiperidin-4-yl)-β-aminopropionic acid dodecylester; N-(2,2,6,6-tetramethylpiperidin-4-yl)-N′-aminooxalamide;propanamide,N-(2,2,6,6-tetramethyl-4-piperidinyl)-3-[(2,2,6,6-tetramethyl-4-piperidinyl)amino]-;mixture of 4-hexadecyloxy- and4-stearyloxy-2,2,6,6-tetramethylpiperidine;3-dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione;3-dodecyl-1-(1-ethanoyl-2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione;bis(2,2,6,6-tetramethylpiperidin-4-yl)succinate;bis(1,2,2,6,6-pentamethylpiperidin-4-yl) n-butyl3,5-di-tert-butyl-4-hydroxybenzylmalonate;tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate;1,1′-(1,2-ethanediyl)bis(3,3,5,5-tetramethylpiperazinone);4-benzoyl-2,2,6,6-tetramethylpiperidine;4-stearyloxy-2,2,6,6-tetramethylpiperidine;bis(1,2,2,6,6-pentamethylpiperidyl)-2-n-butyl-2-(2-hydroxy-3,5-di-tert-butylbenzyl)malonate;3-n-octyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decan-2,4-dione;bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl)sebacate;bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl)succinate;8-acetyl-3-dodecyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione;3-dodecyl-1-(2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidin-2,5-dione;3-dodecyl-1-(1-ethanoyl-2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidin-2,5-dione;3-dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione;a mixture of 4-hexadecyloxy- and4-stearyloxy-2,2,6,6-tetramethylpiperidine;2-undecyl-7,7,9,9-tetramethyl-1-oxa-3,8-diaza-4-oxospiro[4.5]decane;1,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid,bis(2,2,6,6-tetramethyl-4-piperidinyl) and1,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid,bis(1,2,2,6,6-pentamethyl-4-piperidinyl);N¹-((β-hydroxyethyl)3,3-pentamethylene-5,5-dimethylpiperazin-2-one;N¹-tert-octyl-3,3,5,5-tetramethyl-diazepin-2-one;N¹-tert-octyl-3,3-pentamethylene-5,5-hexamethylene-diazepin-2-one;N¹-tert-octyl-3,3-pentamethylene-5,5-dimethylpiperazin-2-one;trans-1,2-cyclohexane-bis-(N¹-5,5-dimethyl-3,3-pentamethylene-2-piperazinone;trans-1,2-cyclohexane-bis-(N¹-3,3,5,5-dispiropentamethylene-2-piperazinone);N¹-isopropyl-1,4-diazadispiro-(3,3,5,5)pentamethylene-2-piperazinone;N¹-isopropyl-1,4-diazadispiro-3,3-pentamethylene-5,5-tetramethylene-2-piperazinone;N¹-isopropyl-5,5-dimethyl-3,3-pentamethylene-2-piperazinone;trans-1,2-cyclohexane-bis-N¹-(dimethyl-3,3-pentamethylene-2-piperazinone);N¹-octyl-5,5-dimethyl-3,3-pentamethylene-1,4-diazepin-2-one;N¹-octyl-1,4-diazadispiro-(3,3,5,5)pentamethylene-1,5-diazepin-2-one;and mixtures thereof.

Embodiment 7

The thermal and UV light stabilizing composition according to any one ofthe preceding embodiments, wherein the hindered hydroxybenzoate compoundis according to Formula (III):

wherein R₁₇ in Formula (III) is a C₁-C₈ alkyl and R₁₈ in Formula (III)is a C₁-C₂₄alkyl or substituted or unsubstituted C₆-C₂₄aryl.

Embodiment 8

The thermal and UV light stabilizing composition according to any one ofthe preceding embodiments, wherein the hindered hydroxybenzoate compoundis selected from the group consisting of 2,4-di-tert-butylphenyl3,5-di-tert-butyl-4-hydroxybenzoate; hexadecyl3,5-di-tert-butyl-4-hydroxybenzoate; octadecyl3,5-di-tert-butyl-4-hydroxybenzoate; octyl3,5-di-tert-butyl-4-hydroxybenzoate; tetradecyl3,5-di-tert-butyl-4-hydroxybenzoate; behenylyl3,5-di-tert-butyl-4-hydroxybenzoate; 2-methyl-4,6-di-tert-butylphenyl3,5-di-tert-butyl-4-hydroxybenzoate and butyl3-[3-t-butyl-4-(3,5-di-t-butyl-4-hydroxybenzoyloxy)phenyl]propionate;and mixtures thereof.

Embodiment 9

The thermal and UV light stabilizing composition according to any one ofthe preceding embodiments, wherein the acid scavenger is selected fromthe group consisting of zinc oxide, calcium lactate, natural andsynthetic hydrotalcites, natural and synthetic hydrocalumites, alkalimetal salts and alkaline earth metal salts of higher fatty acids,calcium stearate, zinc stearate, magnesium behenate, magnesium stearate,sodium stearate, sodium ricinoleate and potassium palmitate, antimonypyrocatecholate, zinc pyrocatecholate and mixtures thereof.

Embodiments 10

The thermal and UV light stabilizing composition according to any one ofthe preceding embodiments, wherein the hindered phenol antioxidantcompound comprises a molecular fragment according to one or more ofFormula (IVa), (IVb), or (IVc):

-   wherein-   R₁₈ in Formulae (IVa), (IVb) and (IVc) is chosen from hydrogen and a    C₁₋₄ hydrocarbyl;-   R₁₉ and R₂₀ in Formulae (IVa), (IVb) and (IVc) are each individually    chosen from hydrogen and a C₁-C₂₀ hydrocarbyl; and-   R₃₇ in Formulae (IVa), (IVb) and (IVc)is chosen from C₁-C₁₂    hydrocarbyl.

Embodiment 11

The thermal and UV light stabilizing composition according to embodiment10, wherein R₁₈ and R₃₇ in Formulae (IVa), (IVb) and (IVc) are chosenfrom methyl and t-butyl.

Embodiment 12

The thermal and UV light stabilizing composition according to any one ofthe preceding embodiments, wherein the at least one hindered phenolcompound is chosen from:(1,3,5-Tris(4-t-butyl-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-triazine-2,4,6-(1H,3H,5H)-trione;1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione;1,1,3-Tris(2′-methyl-4′-hydroxy-5′-t-butylphenyl)butane; Triethyleneglycol bis[3-(3-t-butyl-4-hydroxy-5-methylphenyl)propionate];4,4′-Thiobis(2-t-butyl-5-methylphenol); 2,2′-Thiodiethylenebis[3-(3-t-butyl-4-hydroxyl-5-methylphenyl)propionate]; Octadecyl3-(3′-t-butyl-4′-hydroxy-5′-methylphenyl)propionate;Tetrakismethylene(3-t-butyl-4-hydroxy-5-methylhydrocinnamate)methane;N,N′-Hexamethylenebis[3-(3-t-butyl-4-hydroxy-5-methylphenyl)propionamide];Di(4-tertiarybutyl-3-hydroxy-2,6-dimethyl benzyl) thiodipropionate; andoctadecyl 3,5-di-(tert)-butyl-4-hydroxyhydrocinnamate; and mixturesthereof.

Embodiment 13

The thermal and UV light stabilizing composition according to any one ofthe preceding embodiments, wherein the phosphite compound is a hinderedarylalkyl phosphite compound according to Formula (V):

-   wherein R¹, R², R³, R⁴, R⁵, R⁶, R⁷, R⁸, R⁹, and R¹⁰ in Formula (V)    are each individually selected from hydrogen, C₁-C₁₂ alkyl, C₃-C₁₂    cycloalkyl, C₄-C₁₂ alkyl cycloalkyl, C₆-C₁₀ aryl, and C₇-C₁₂    alkylaryl, wherein R¹ and R⁵ together comprise at least 5 carbons    and at least one of R¹ and R⁵ comprises a tertiary carbon, wherein    R⁶ and R¹⁰ together comprise at least 5 carbons and at least one of    R⁶ and R¹⁰ comprises a tertiary carbon; or-   a trisarylphosphite according to Formula (VI):

-   wherein R¹⁶, R¹⁷, R⁴⁰, R⁴¹, and R⁴² in Formula (VI) are each    individually selected from hydrogen, C₁-C₂₀ alkyl, C₃-C₂₀    cycloalkyl, C₄-C₂₀ alkyl cycloalkyl, C₆-C₁₀ aryl, and C₇-C₂₀    alkylaryl;-   or mixtures thereof.

Embodiment 14

The thermal and UV light stabilizing composition according to embodiment13, wherein the hindered arylalkyl phosphite is selected from the groupconsisting of bis-(2,6-di-t-butyl-4-methlphenyl)pentaerythritoldiphosphite, (bis-(2,4-dicumylphenyl)pentaerythritol diphosphite,bis-(2,4-di-t-butyl-phenyl)pentaerythritol diphosphite, andbis-(2,4,6-tri-t-butyl-phenyl)pentaerythritol diphosphite; and mixturesthereof.

Embodiment 15

The thermal and UV light stabilizing composition according to embodiment13, wherein the trisarylphosphite is selected from the group consistingof tris-(2,4-di-t-butylphenyl)phosphite, tris(4-nonylphenyl) phosphiteand triphenyl phosphite; and mixtures thereof.

Embodiment 16

The thermal and UV light stabilizing composition according to any one ofembodiments 2-15, wherein the thioester compound is selected from thegroup consisting of dilauryl thiodipropionate, distearylthiodipropionate, pentaerythrithol tetrakis-(3-dodecylthipropionate),tetra-alkyl thioethyl thiodisuccinate,2,12-dihydroxy-4,10-dithia-7-oxatridecamethylenebis[3-(dodecylthio)propionate], polyalkanol esters of alkylthio-alkanoicacids, and dialkyl 3,3′-thiodipropionates; and mixtures thereof.

Embodiment 17

The thermal and UV light stabilizing composition according to any one ofembodiments 2-16, wherein:

-   the ortho-hydroxyl tris-aryl-s-triazine compound is    2-[4,6-bis(2,4-dimethylphenyl)-1,3,5-triazin-2-yl]-5-(octyloxy)    phenol;-   the hindered amine light stabilizer compound is a mixture of fatty    acids, and C₁₂-C_(21,) C₁₈ unsaturated    2,2,6,6,-tetramethyl-4-piperidinyl esters;-   the hindered hydroxybenzoate compound is 3,5-di    -tert-butyl-4-hydroxybenzoic acid, hexadecyl ester;-   the acid scavenger is selected from the group consisting of    magnesium oxide, aluminum oxide, magnesium hydroxide, aluminum    hydroxide, carbonates thereof and mixtures thereof;-   the phosphite compound is bis(2,4-dicumylphenyl) pentaerythritol    diphosphite);-   the hindered phenol antioxidant compound is 1,3,5-Tris    (4-tert-butyl-3-hydroxy-2,6-dimethyl    benzyl)-1,3,5-triazine-2,4,6-(1H, 3H, 5H)-trione; and-   the thioester is pentaerythrithol tetrakis-(3-dodecylthiopropionate)    or Distearyl thiodipropionate.

Embodiment 18

A composition comprising:a thermal and UV light stabilizing compositionaccording to any one of embodiments 1 to 17; and a material to bestabilized.

Embodiment 19

A composition according to embodiment 18, wherein the material to bestabilized is selected from the group consisting of: polyolefins,polyesters, polyethers, polyketones, polyamides, natural and syntheticrubbers, polyurethanes, polystyrenes, high-impact polystyrenes,polyacrylates, polymethacrylates, polyacetals, polyacrylonitriles,polybutadienes, polystyrenes, acrylonitrile-butadiene-styrene, styreneacrylonitrile, acrylate styrene acrylonitrile, cellulosic acetatebutyrate, cellulosic polymers, polyimides, polyamideimides,polyetherimides, polyphenylsulfides, polyphenyloxidepolysulfones,polyethersulfones, polyvinylchlorides, polycarbonates, polyketones,aliphatic polyketones, thermoplastic olefins, aminoresin cross-linkedpolyacrylates and polyesters, polyisocyanate cross-linked polyesters andpolyacrylates, phenol/formaldehyde, urea/formaldehyde andmelamine/formaldehyde resins, drying and non-drying alkyd resins, alkydresins, polyester resins, acrylate resins cross-linked with melamineresins, urea resins, isocyanates, isocyanurates, carbamates, and epoxyresins, cross-linked epoxy resins derived from aliphatic,cycloaliphatic, heterocyclic and aromatic glycidyl compounds, which arecross-linked with anhydrides or amines, polysiloxanes, Michael additionpolymers, amines, blocked amines with activated unsaturated andmethylene compounds, ketimines with activated unsaturated and methylenecompounds, polyketimines in combination with unsaturated acrylicpolyacetoacetate resins, polyketimines in combination with unsaturatedacrylic resins, radiation curable compositions, epoxymelamine resins,organic dyes, cosmetic products, cellulose-based paper formulations,photographic film paper, fibers, waxes, inks, and blends thereof.

Embodiment 20

The composition according to embodiment 18 or embodiment 19, wherein thematerial to be stabilized is selected from the group consisting ofthermoplastic olefins, acrylonitrile-butadiene-styrene, polyesters,polyvinylchloride, polyamides, polyurethanes, or homo- and copolymers ofpropylene, isobutylene, butene, methylpentene, hexene, heptene, octene,isoprene, butadiene, hexadiene, dicyclopentadiene, ethylidenecyclopentene and norbornene.

Embodiment 21

The composition according to any one of embodiments 18-20, wherein thematerial to be stabilized is polypropylene or polyethylene.

Embodiment 22

The composition according to embodiment 18, wherein the material to bestabilized is vinyl siding, vinyl siding trim, a shutter, a gable vent,an eave, fascia, a soffit, a molding, a roofing shingle, a roofingunderlayment, a roofing membrane, a batten systems, a batten extender,flashing, a tile pan, a ridge vent, a weather block, a hip and ridgesystem, an eave riser, a taper strip, a gable end wedge, rake trim, ageomembrane, a composite deck material, a railing or a window frame.

Embodiment 23

The composition according to any one of embodiments 18-21, wherein thecomposition is a master batch and the thermal and UV light stabilizingcomposition is present in an amount from about 10 wt. % to about 80 wt.% based on a total weight of the master batch composition, and thematerial to be stabilized is present in an amount from about 20 wt. % toabout 90 wt. % based on the total weight of the master batchcomposition.

Embodiment 24

The composition according to embodiment 23, wherein the composition is amaster batch and the thermal and UV light stabilizing composition ispresent in an amount from about 30 wt. % to about 60 wt. % based on atotal weight of the master batch composition, and the material to bestabilized is present in an amount from about 40 wt. % to about 70 wt. %based on the total weight of the master batch composition.

Embodiment 25

The composition according to any one of embodiments 23-24, wherein thecomposition is a master batch and the thermal and UV light stabilizingcomposition is present in an amount between about 40 wt. % to about 50wt. % based on a total weight of the master batch composition, and thematerial to be stabilized is present in an amount between about 50 wt. %to about 60 wt. % based on the total weight of the master batchcomposition.

Embodiment 26

The composition according to any one of embodiments 18-22, wherein thethermal and UV light stabilizing composition is present in an amountfrom 0.01 wt. % to 5 wt. % based on a total weight of the stabilizedcomposition.

Embodiment 27

The composition according to embodiment 26, wherein the thermal and UVlight stabilizing composition is present in an amount from 0.05 wt. % to2 wt. % based on a total weight of the stabilized composition.

Embodiment 28

The composition according to any one of embodiments 26-27, wherein anamount of the ortho-hydroxyl tris-aryl-s-triazine compound is from about0.002 wt. % to about 0.50 wt. %, an amount of the hindered amine lightstabilizer compound is from about 0.01 wt. % to about 1.20 wt. %, anamount of the hindered hydroxybenzoate compound is from about 0.01 wt. %to about 1.20 wt. %, an amount of the acid scavenger is from about 0.001wt. % to about 0.50 wt. %, an amount of the hindered phenol antioxidantcompound is from about 0.001 wt. % to about 0.50 wt. %, and an amount ofthe phosphite compound is from about 0.005 wt. % to about 1.00 wt. %,based on the total weight of the stabilized composition.

Embodiment 29

The composition according to embodiment 28, wherein the amount of theortho-hydroxyl tris-aryl-s-triazine compound is from about 0.004 wt. %to about 0.20 wt. %, the amount of the hindered amine light stabilizercompound is from about 0.02 wt. % to about 0.80 wt. %, the amount of thehindered hydroxybenzoate compound is from about 0.02 wt. % to about 0.80wt. %, the amount of the acid scavenger is from about 0.003 wt. % toabout 0.25 wt. %, the amount of the hindered phenol antioxidant compoundis from about 0.002 wt. % to about 0.25 wt. %, and the amount of thephosphite composition is from about 0.01 wt. % to about 0.80 wt. %,based on a total weight of the stabilized composition.

Embodiment 30

The composition according to any one of embodiments 26-29, wherein thethermal and UV light stabilizing composition further comprises athioester compound, wherein an amount of the thioester compound is fromabout 0.001 wt. % to about 0.80 wt. %, based on a total weight of thestabilized composition.

Embodiment 31

The composition according to embodiment 30, wherein the amount of thethioester compound is from about 0.003 wt. % to about 0.4 wt. %, basedon a total weight of the stabilized composition.

Embodiment 32

A process for preparing a composition according to any one ofembodiments 18-31, wherein the material to be stabilized is combinedwith the thermal and UV light stabilizing composition.

Embodiment 33

The process according to embodiment 32, wherein the material to bestabilized is selected from the group consisting of thermoplasticolefins, acrylonitrile-butadiene-styrene, polyesters, polyvinylchloride,polyamides, polyurethanes, or homo- and copolymers of propylene,isobutylene, butene, methylpentene, hexene, heptene, octene, isoprene,butadiene, hexadiene, dicyclopentadiene, ethylidene cyclopentene andnorbornene.

Embodiment 34

The process according to embodiment 32 or embodiment 33, wherein thematerial to be stabilized is polypropylene or polyethylene.

Embodiment 35

The process according to embodiment 32, wherein the material to bestabilized is vinyl siding, vinyl siding trim, a shutter, a gable vent,an eave, fascia, a soffit, a molding, a roofing shingle, a roofingunderlayment, a roofing membrane, a batten systems, a batten extender,flashing, a tile pan, a ridge vent, a weather block, a hip and ridgesystem, an eave riser, a taper strip, a gable end wedge, rake trim, ageomembrane, a composite deck material, a railing or a window frame.

Embodiment 36

A process for improving processability of a material selected from thegroup consisting of polyolefins, polyesters, polyethers, polyketones,polyamides, natural and synthetic rubbers, polyurethanes, polystyrenes,high-impact polystyrenes, polyacrylates, polymethacrylates, polyacetals,polyacrylonitriles, polybutadienes, polystyrenes,acrylonitrile-butadiene-styrene, styrene acrylonitrile, acrylate styreneacrylonitrile, cellulosic acetate butyrate, cellulosic polymers,polyimides, polyamideimides, polyetherimides, polyphenylsulfides,polyphenyloxidepolysulfones, polyethersulfones, polyvinylchlorides,polycarbonates, polyketones, aliphatic polyketones, thermoplasticolefins, aminoresin cross-linked polyacrylates and polyesters,polyisocyanate cross-linked polyesters and polyacrylates,phenol/formaldehyde, urea/formaldehyde and melamine/formaldehyde resins,drying and non-drying alkyd resins, alkyd resins, polyester resins,acrylate resins cross-linked with melamine resins, urea resins,isocyanates, isocyanurates, carbamates, and epoxy resins, cross-linkedepoxy resins derived from aliphatic, cycloaliphatic, heterocyclic andaromatic glycidyl compounds, which are cross-linked with anhydrides oramines, polysiloxanes, Michael addition polymers, amines, blocked amineswith activated unsaturated and methylene compounds, ketimines withactivated unsaturated and methylene compounds, polyketimines incombination with unsaturated acrylic polyacetoacetate resins,polyketimines in combination with unsaturated acrylic resins, radiationcurable compositions, epoxymelamine resins, organic dyes, cosmeticproducts, cellulose-based paper formulations, photographic film paper,fibers, waxes, inks, and blends thereof, the process comprising adding astabilizing amount of a stabilizing composition to the material, thestabilizing composition according to any one of embodiments 1-17.

The compositions disclosed herein may be used in a variety ofapplications, including, but not limited to automotive applications suchas air vents, instrument panels, control consoles, battery house, andexterior parts such as bumpers, side moldings and minor housings. Thecompositions may also be used in geomembrane applications such as, forexample, pond liners, ground covers, underlayment, water barriers,erosion control membranes, and the like. Other applications that wouldbenefit from thermal and UV stabilization are also contemplated herein.

While the invention has been described with reference to variousexemplary embodiments, it will be understood by those skilled in the artthat various changes may be made and equivalents may be substituted forelements thereof without departing from the scope of the invention. Inaddition, many modifications may be made to adapt a particular situationor matter to the teachings of the invention without departing from theessential scope thereof. Therefore, it is intended that the inventionnot be limited to the particular embodiment disclosed as the best modecontemplated for carrying out this invention, but that the inventionwill include all embodiments falling within the scope of the appendedclaims.

EXAMPLES 1-14

The invention will now be illustrated by the following examples. Theexamples are not intended to limit the scope of the present invention.In conjunction with the general and detailed descriptions above, theexamples provide further understanding of the present invention.

Materials: Thermoplastic olefin (TPO) number AHXPT053A1100NT101 fromAsahi Kasei Corporation is used as base polymer. The various additives(designated A-H) and their wt. % loading are listed in Table 1 below,which will be used henceforth. The additives are used as received.

TABLE 1 Additive Loading Designation Additives (wt %) A CYASORB ® UV3853 is Fatty acids, C₁₂-C₂₁, C₁₈ unsaturated 0.55002,2,6,6,-tetramethyl-4-Piperidinyl esters (a hindered amine) (availablefrom Cytec Industries Inc., NJ) B CYASORB ® UV 2908 is3,5-di-tert-butyl-4-hydroxybenzoic acid, 0.1800 hexadecyl ester (ahindered hydroxybenzoate) (available from Cytec Industries Inc., NJ) CCYASORB ® UV 1164 is 2-[4,6-bis(2,4-dimethylphenyl)-1,3,5- 0.0700triazin-2-yl]-5-(octyloxy) phenol (a ortho-hydroxyl tris-aryl-s-triazinecompound) (available from Cytec Industries Inc., NJ) D DOVERPHOS ® 9228is bis(2,4-dicumylphenyl) pentaerythritol 0.0548 diphosphite) from DoverChemical Corporation (a phosphite) (available from Dover ChemicalCorporation) E CYANOX ® 1790 is 1,3,5-Tris(4-tert-butyl-3-hydroxy-2,6-dimethyl 0.0328benzyl)-1,3,5-triazine-2,4,6-(1H, 3H, 5H)-trione (a hindered phenolAntioxidant) (available from Cytec Industries Inc., NJ) F DHT-4A is amixture of MgO/Al₂O₃ (1:4.5) (an Acid scavenger) 0.0548 (available fromKyowa Chemical Industry Co. Ltd.) G CYANOX ® STDP is Distearylthiodipropionate (Stearyl chloride, 0.0548 stearyl alcohol, 3,3′-Thiodipropione acid, distearyl ester) (Thioester) (available fromCytec Industries Inc., NJ) H SEENOX 412S is Pentaerythritholtetrakis-(3-dodecylthiopropionate) 0.0548 (Thioester) (available fromShipro Kasei Kaisha)

Melt Mixing of Polymer Additives: First, the additives are weighed andmixed with polymer pellets. The solid mixture is vigorously shaken toachieve uniform mixing of additives. The solid mixture is then fed intothe twin screw extruder hopper. The compounding of additives isperformed using a Twin Screw extruder. The conditions during compoundingare as follows: rotor speed: 130 rpm; melt temperature: 232° C.; feedrate: 800 rpm; temperature profile range: 171-230° C. The averagepressure reading during compounding is 36-40%. Compounded samples arepelletized using a Conair pelletizer. The pellets are air dried for 24hrs. before further use.

Sample Preparation: Samples for thermal and weathering tests areprepared using an Arburg injection molder. The conditions duringinjection molding are as follows: nozzle temperature: 230° C.; injectionpressure: 60, shot size: 14.5. For tensile testing, tensile barsaccording to ASTM638-Type 5 are prepared. Plaques having standard2×2×0.125 inch dimension are used for both thermal and weathering tests.

Thermal and Weathering Test Conditions: For thermal performance, samples(Tensile bars and plaques) are kept at 150° C. for a total of 1000 hrs.Samples are analyzed for gloss retention, Delta E, and mechanicalstrength (stress at break) at 200 hr. intervals. Surface gloss ismeasured using micro-TRI-Gloss from BYK-Gardner under ASTM TestProcedure D523 with a 60° angle. The gloss retention value is calculatedbased on unexposed sample. Change in sample color is measured using aMacbeth Color Eye Colorimeter using ASTM D2244-79 with 1″ view andD65/10° observer. From the raw data, Delta E, which is the differencebetween total color change before and after exposure, is calculated.Lower Delta E indicates less color change respectively, indicatingbetter performance. For tensile strength, five tensile bars for eachdata point are tested on an Instron Engineering Company Tensile Tester(Model TTB). The average tensile strength of the five test samples aremeasured using ASTM D638 type-5 method. The cross-head speed of thetensile tester is 2 inch (0.508 cm.) per minute.

For UV weathering, samples are exposed to Xenon Weather-ometer underASTM-G-155 testing conditions, PV1303, SAEJ1885 (J2412) and SAEJ1960(J2527). Samples are analyzed for gloss retention and Delta E after setexposure interval.

Thirteen samples with various stabilizer additive combinations areformulated as described above and then tested for extreme thermalperformance (tensile strength, gloss and color change) and extremeweathering performance (gloss and color change) against a control sample(no stabilizer composition added). Those samples denoted by a “C” arecomparative and represent control samples (i.e., no stabilizingcompositions added), or samples containing formulations previously knownto those skilled in the art. Example 2C, for example, is based on aformulation described in U.S. Pat. No. 6,843,939. Results of the thermaland weathering tests for the samples as prepared above are presented inTables 2-5 below.

TABLE 2 Extreme Thermal Performance of Examples 1 to 14: Tensilestrength % Retained Tensile Tensile Tensile Description of StabilizerStrength Strength Strength Examples Composition added to Polymer 0 hr.1000 hr. 1000 hr.   1C No stabilizer composition 4005 16 0.4   2C A +B + C 4125 79 1.9   3C A + B + C + D 4162 41 1.0   4C A + B + C + D + E4209 9 0.2  5 A + B + C + D + G 4251 79 1.9  6 A + B + C + D + H 4318 180.4  7 A + B + C + D + F 4424 23 0.5  8 A + B + C + D + E + H 4204 3097.3  9 A + B + C + D + E + G 4277 175 4.1 10 A + B + C + D + E + F 4273369 8.6 11 A + B + C + D + F + G 4247 249 5.9 12 A + B + C + D + F + H4391 113 2.6 13 A + B + C + D + E + F + G 4282 1519 35.5 14 A + B + C +D + E + F + H 4249 3330 78.4

Examples 1C-4C performed poorly with regard to retaining tensilestrength under extreme thermal conditions as compared to certaincompositions according to the invention as described herein (e.g.,Examples 5-14).

TABLE 3 Extreme Thermal Performance of Examples 1 to 14: PercentageGloss Retention and Total Color Change % Gloss Total Color RetentionChange Description of Stabilizer (60°) (ΔE) Examples Composition addedto Polymer 1200 hr. 1200 hr.   1C No stabilizer composition 15 47.1   2CA + B + C 16 46.8   3C A + B + C + D 7 47.2   4C A + B + C + D + E 1746.9  5 A + B + C + D + G 22 46.7  6 A + B + C + D + H 23 49.8  7 A +B + C + D + F 15 47.7  8 A + B + C + D + E + H 25 35.3  9 A + B + C +D + E + G 44 26.2 10 A + B + C + D + E + F 34 50.0 11 A + B + C + D +F + G 23 24.6 12 A + B + C + D + F + H 19 46.5 13 A + B + C + D + E +F + G 69 15.0 14 A + B + C + D + E + F + H 65 13.8

Compositions according to the invention as described herein (e.g.,Examples 13 and 14) provide the best extreme thermal performance interms of highest gloss retention and lowest color change as compared tocontrol samples and samples containing formulations known to thoseskilled in the art (i.e., Examples 1C-4C). This result is also visuallydemonstrated by FIGS. 1A-1E. Plaques with no stabilizer composition(FIG. 1A) or with stabilizer composition based on U.S. Pat. No.6,843,939 (FIG. 1B) show blooming under extreme thermal conditions,whereas plaques with stabilizing compositions according to the inventionas described herein (FIGS. 1C, 1D, and 1E) show significantly less, orno blooming under the same conditions.

TABLE 4 Extreme Weathering Performance of examples 1 to 14 PercentageGloss Retention % Gloss Retention Description of Stabilizer InteriorExterior PV1303 Examples Composition added to Polymer 2500 kJ 2500 kJ10th Cycle   1C No stabilizer composition Surface surface 0 crack crack  2C A + B + C 95 89 93   3C A + B + C + D 98 92 92   4C A + B + C + D +E 99 89 94  5 A + B + C + D + G 99 90 96  6 A + B + C + D + H 100 91 94 7 A + B + C + D + F 100 91 94  8 A + B + C + D + E + H 101 89 92  9 A +B + C + D + E + G 100 95 95 10 A + B + C + D + E + F 100 92 90 11 A +B + C + D + F + G 100 90 94 12 A + B + C + D + F + H 99 91 94 13 A + B +C + D + E + F + G 99 94 93 14 A + B + C + D + E + F + H 98 95 94

Compositions according to the invention as described herein (e.g.,Examples 10, 13, and 14) do not adversely affect the good weatheringperformance in terms of highest gloss retention when compared to controlsamples and samples containing formulations known to those skilled inthe art (i.e., Examples 1C-4C).

TABLE 5 Extreme Weathering Performance of Examples 1 to 14: Total ColorChange (Delta E) Total Color Change (ΔE) Description of StabilizerInterior Exterior PV1303 Examples Composition added to Polymer 2500 kJ2500 kJ 10th Cycle   1C No stabilizer composition Surface Surface 13.7Crack crack   2C A + B + C 5.6 1.9 3.8   3C A + B + C + D 5.7 1.8 4.0  4C A + B + C + D + E 5.9 1.8 4.3  5 A + B + C + D + G 6.4 1.8 4.6  6A + B + C + D + H 6.4 1.7 4.7  7 A + B + C + D + F 6.5 2.0 4.8  8 A +B + C + D + E + H 6.2 1.8 4.4  9 A + B + C + D + E + G 5.7 1.6 4.4 10A + B + C + D + E + F 6.1 1.9 4.2 11 A + B + C + D + F + G 6.5 1.9 4.612 A + B + C + D + F + H 6.5 1.9 4.9 13 A + B + C + D + E + F + G 5.71.7 4.0 14 A + B + C + D + E + F + H 5.9 1.7 4.0

Compositions according to the invention as described herein (e.g.,Examples 10, 13, and 14) do not adversely affect the good weatheringperformance in terms of lowest color change when compared to controlsamples and samples containing formulations known to those skilled inthe art (i.e., Examples 1C-4C).

Thus, based on the results above, it is surprisingly shown thatcompositions according to the invention as described herein not onlydisplay a synergistic effect and provide enhanced thermal performance interms of retaining tensile strength under extreme conditions as comparedto control samples and samples containing formulations known to thoseskilled in the art, but the compositions according to the invention asdescribed herein also do not have any antagonistic effect against thegood weathering performance demonstrated by samples containingformulations known to those skilled in the art.

EXAMPLES 15-19 Multipass Processing Stabilization Study

In Examples 15-19, the additives listed in Table 1 are utilized toconduct a multipass processing stabilization study.

Melt Mixing of Polymer Additives: First, the additives are weighed andmixed with polypropylene (Profax 6301) resin. The solid mixture isvigorously shaken to achieve uniform mixing of additives. The solidmixture is fed into the single screw extruder hopper. The compounding ofadditives is performed using a single screw extruder. The conditionsduring compounding are as follows: rotor speed: 100 rpm; melttemperature: 230° C.; feed rate: 70-100 rpm; temperature profile range:215-230° C. The average pressure reading during compounding is 36-40%.Compounded samples are pelletized using a Conair pelletizer.

Multipass Extrusion Processing: The pellets are passed through thesingle screw extruder five times and about 200 g of sample are collectedfrom the first, third, and fifth passes. To determine the processingcharacteristics, the relative melt flow of the compounded polypropylenepellets are measured using the Dynisco Melt Flow Indexer (MFI). Thisprocedure is specific for ASTM D1238 Method B—Automatically Timed FlowRate Measurement. A lower Melt flow rate (MFR—g/10 min) indicates higherviscosity properties, demonstrating better stability performance of thepolymer. The results are shown in Table 6 below as well as in a graphpresented in FIG. 2.

TABLE 6 Processing stabilization performance: Melt Flow Index (g/10 min)Melt Flow Index (g/10 min) Examples Description Pass 1 Pass 3 Pass 5  15C No stabilizer composition 16.90 22.08 26.21   16C A + B + C 16.2719.93 23.45 17 A + B + C + D + E + F 14.91 14.66 15.62 18 A + B + C +D + E + F + G 14.20 13.74 14.29 19 A + B + C + D + E + F + H 13.96 13.7114.33As show in Table 6 and in the graph of FIG. 2, compositions according tothe invention as described herein (Examples 17, 18 and 19) have improvedprocessability, i.e., remain stabilized and maintain low melt flowrates, as compared to other compositions.

What is claimed is:
 1. A thermal and ultraviolet (UV) light stabilizingcomposition comprising: an ortho-hydroxyl tris-aryl-s-triazine compound;a hindered amine light stabilizer compound; a hindered hydroxybenzoatecompound; an acid scavenger; a phosphite compound; and a hindered phenolantioxidant compound.
 2. The thermal and UV light stabilizingcomposition according to claim 1, further comprising a thioestercompound.
 3. The thermal and UV light stabilizing composition accordingto claim 2, wherein the thioester compound is selected from the groupconsisting of dilauryl thiodipropionate, distearyl thiodipropionate,pentaerythrithol tetrakis-(3-dodecylthipropionate), tetra-alkylthioethyl thiodisuccinate,2,12-dihydroxy-4,10-dithia-7-oxatridecamethylenebis[3-(dodecylthio)propionate], polyalkanol esters of alkylthio-alkanoicacids, and dialkyl 3,3′-thiodipropionates; and mixtures thereof.
 4. Thethermal and UV light stabilizing composition according to claim 1,wherein: (a) the ortho-hydroxyl tris-aryl-s-triazine compound is a2-(2′-hydroxyphenyl)-1,3,5-triazine compound according to Formula (I):

wherein each of R₃₄ and R₃₅ in Formula (I) is independently chosen fromC₆-C₁₀ aryl optionally substituted, C₁-C₁₀ hydrocarbyl-substitutedamino, C₁-C₁₀ acyl and C₁-C₁₀ alkoxyl; and wherein R₃₆ in Formula (I) isa substituent that is the same or different at from 0 to 4 positions ofthe phenoxy portion of Formula I and is independently chosen fromhydroxyl, C₁-C₁₂ hydrocarbyl, C₁-C₁₂ alkoxyl, C₁-C₁₂ alkoxyester, andC₁-C₁₂ acyl, (b) the hindered amine light stabilizer compound comprisesa molecular fragment according to Formula (II):

wherein R₃₁ in Formula (II) is chosen from: hydrogen; OH; C₁-C₂₀hydrocarbyl; —CH2CN; C₁-C₁₂ acyl; and C₁-C₁₈ alkoxy; R₃₈ in Formula (II)is chosen from: hydrogen; and C₁-C₈ hydrocarbyl; and each of R_(29,)R_(30,) R_(32,) and R₃₃ in Formula (II) is independently chosen fromC₁-C₂₀ hydrocarbyl, or R₂₉ and R₃₀ and/or R₃₂ and R₃₃ in Formula (II)taken together with the carbon to which they are attached form a C₅-C₁₀cycloalkyl; or Formula (IIa)

wherein m in Formula (IIa) is an integer from 1 to 2; R₃₉ is chosenfrom: hydrogen; OH; C₁-C₂₀ hydrocarbyl; —CH₂CN; C₁-C₁₂ acyl; and C₁-C₁₈alkoxy; and each of G1-G4 in Formula (IIa) is independently chosen fromC₁-C₂₀ hydrocarbyl, (c) the hindered hydroxybenzoate compound isaccording to Formula (III):

wherein R₁₇ in Formula (III) is a C₁-C₈ alkyl and R₁₈ in Formula (III)is a C₁-C₂₄alkyl or substituted or unsubstituted C₆-24 aryl, (d) theacid scavenger is selected from the group consisting of zinc oxide,calcium lactate, natural and synthetic hydrotalcites, natural andsynthetic hydrocalumites, alkali metal salts and alkaline earth metalsalts of higher fatty acids, calcium stearate, zinc stearate, magnesiumbehenate, magnesium stearate, sodium stearate, sodium ricinoleate andpotassium palmitate, antimony pyrocatecholate, zinc pyrocatecholate andmixtures thereof, (e) the hindered phenol antioxidant compound comprisesa molecular fragment according to one or more of Formula (IVa), (IVb),or (IVc):

wherein R₁₈ in Formulae (IVa), (IVb) and (IVc) is chosen from hydrogenand a C₁₋₄ hydrocarbyl; R₁₉ and R₂₀ in Formulae (IVa), (IVb) and (IVc)are each individually chosen from hydrogen and a C₁-C₂₀ hydrocarbyl; andR₃₇ in Formulae (IVa), (IVb) and (IVc) is chosen from C₁-C₁₂hydrocarbyl, and (f) the phosphite compound is a hindered arylalkylphosphite compound according to Formula (V):

wherein R¹, R², R³, R⁴, R⁵, R⁶, R⁷, R⁸, R⁹, and R¹⁰ in Formula (V) areeach individually selected from hydrogen, C₁-C₁₂ alkyl, C₃-C₁₂cycloalkyl, C₄-C₁₂ alkyl cycloalkyl, C₆-C₁₀ aryl, and C₇-C₁₂ alkylaryl,wherein R¹ and R⁵ together comprise at least 5 carbons and at least oneof R¹ and R⁵ comprises a tertiary carbon, wherein R⁶ and R¹⁰ togethercomprise at least 5 carbons and at least one of R⁶ and R¹⁰ comprises atertiary carbon; or a trisarylphosphite according to Formula (VI):

wherein R¹⁶, R¹⁷, R⁴⁰, R⁴¹, and R⁴² in Formula (VI) are eachindividually selected from hydrogen, C₁-C₂₀ alkyl, C₃-C₂₀ cycloalkyl,C₄-C₂₀ alkyl cycloalkyl, C₆-C₁₀ aryl, and C₇-C₂₀ alkylaryl; or mixturesthereof.
 5. The thermal and UV light stabilizing composition accordingto claim 4, wherein the 2-(2′-hydroxyphenyl)-1,3,5-triazine compound ischosen from:4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-octyloxyphenyl)-s-triazine;4,6-bis-(2,4-dimethylphenyl)-2-(2,4-dihydroxyphenyl)-s-triazine;2,4-bis(2,4-dihydroxyphenyl)-6-(4-chlorophenyl)-s-triazine;2,4-bis[2-hydroxy-4-(2-hydroxy-ethoxy)phenyl]-6-(4-chlorophenyl)-s-triazine;2,4-bis[2-hydroxy-4-(2-hydroxy-4-(2-hydroxy-ethoxy)phenyl]-6-(2,4-dimethylphenyl)-s-triazine;2,4-bis[2-hydroxy-4-(2-hydroxyethoxy)phenyl]-6-(4-bromophenyl)-s-triazine;2,4-bis[2-hydroxy-4-(2-acetoxyethoxy)phenyl]-6-(4-chlorophenyl)-s-triazine;2,4-bis(2,4-dihydroxyphenyl)-6-(2,4-dimethylphenyl)-s-triazine;2,4-bis(4-biphenylyl)-6-[2-hydroxy-4-[(octyloxycarbonyl)ethylideneoxy]phenyl]-s-triazine;2,4-bis(4-biphenylyl)-6-[2-hydroxy-4-(2-ethylhexyloxy)phenyl]-s-triazine;2-phenyl-4-[2-hydroxy-4-(3-sec-butyloxy-2-hydroxypropyloxy)phenyl]-6-[2-hydroxy-4-(3-sec-amyloxy-2-hydroxypropyloxy)phenyl]-s-triazine;2,4-bis(2,4-dimethylphenyl)-6-[2-hydroxy-4(-3-benzyloxy-2-hydroxypropyloxy)phenyl]-s-triazine;2,4-bis(2-hydroxy-4-n-butyloxyphenyl)-6-(2,4-di-n-butyloxyphenyl)-s-triazine;2,4-bis(2,4-dimethylphenyl)-6-[2-hydroxy-4-(3-nonyloxy-2-hydroxypropylox-y)-5-α-cumylphenyl]-s-triazine;methylenebis-{2,4-bis(2,4-dimethylphenyl)-6-[2-hydroxy-4-(3-butyloxy-2-hydroxypropoxy)phenyl]-s-triazine};methylene bridged dimer mixture bridged in the 3:5′,5:5′ and 3:3′positions in a 5:4:1 ratio;2,4,6-tris(2-hydroxy-4-isooctyloxycarbonyliso-propylideneoxy-phenyl)-s-triazine;2,4-bis(2,4-dimethylphenyl)-6-(2-hydroxy-4-hexyloxy-5-α-cumylphenyl)-s-triazine;2-(2,4,6-trimethylphenyl)-4,6-bis[2-hydroxy-4-(3-butyloxy-2-hydroxypropyloxy)phenyl]-s-triazine;2,4,6-tris[2-hydroxy-4-(3-sec-butyloxy-2-hydroxypropyloxy)-phenyl]-s-triazine;mixture of4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-(3-dodecyloxy-2-hydroxypropoxy)phenyl)-s-triazineand4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4-(3-tridecyloxy-2-hydroxypropoxy)phenyl)-s-triazine;4,6-bis-(2,4-dimethylphenyl)-2-(2-hydroxy-4(3-(2-ethylhexyloxy)-2-hydroxypropoxy)-phenyl)-s-triazine;4,6-diphenyl-2-(4-hexyloxy-2-hydroxyphenyl)-s-triazine;2-(4,6-Diphenyl-1,3,5-triazin-2-yl)-5-[2-(2-ethylhexanoyloxy)ethoxy]phenol;2,4,6-tris(2-hydroxy-4-octyloxyphenyl)-1,3,5-triazine; propanoic acid,2,2′,2″-[1,3,5-triazine-2,4,6-triyltris[(3-hydroxy-4,1-phenylene)oxy]]tris-1,1′,1″-trioctylester; propanoic acid,2-[4-[4,6-bis([1,1′-biphenyl]-4-yl)-1,3,5-triazin-2yl]-3-hydroxyphenoxyl]-isooctylester; and combinations thereof.
 6. The thermal and UV light stabilizingcomposition according to claim 4, wherein the hindered amine lightstabilizer is chosen from: bis(2,2,6,6-tetramethylpiperidin-4-yl)sebacate; bis(2,2,6,6-tetramethylpiperidin-4-yl)succinate;bis(1,2,2,6,6-pentamethylpiperidin-4-yl)sebacate;bis(1-octyloxy-2,2,6,6-tetramethylpiperidin-4-yl)sebacate;bis(1,2,2,6,6-pentamethylpiperidin-4-yl) n-butyl3,5-di-tert-butyl-4-hydroxybenzylmalonate; a condensate of1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinicacid; 2,2,6,6-tetramethylpiperidin-4-yl stearate;2,2,6,6-tetramethylpiperidin-4-yl dodecanate;1,2,2,6,6-pentamethylpiperidin-4-yl stearate;1,2,2,6,6-pentamethylpiperidin-4-yl dodecanate; a condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-tert-octylamino-2,6-dichloro-1,3,5-triazine;tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate;tetrakis(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate;4-benzoyl-2,2,6,6-tetramethylpiperidine;4-stearyloxy-2,2,6,6-tetramethylpiperidine;bis(1,2,2,6,6-pentamethylpiperidyl)-2-n-butyl-2-(2-hydroxy-3,5-di-tert-butylbenzyl)malonate;3-n-octyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decan-2,4-dione;bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl)sebacate;bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl)succinate; a condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-morpholino-2,6-dichloro-1,3,5-triazine; a condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-morpholino-2,6-dichloro-1,3,5-triazine, methylated; a condensate of2-chloro-4,6-bis(4-n-butylamino-2,2,6,6-tetramethylpiperidyl)-1,3,5-triazineand 1,2-bis(3-aminopropylamino)ethane; a condensate of2-chloro-4,6-bis(4-n-butylamino-1,2,2,6,6-pentamethylpiperidyl)-1,3,5-triazineand 1,2-bis-(3-aminopropylamino)ethane;8-acetyl-3-dodecyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione;3-dodecyl-1-(2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidin-2,5-dione;3-dodecyl-1-(1-ethanoyl-2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidin-2,5-dione;3-dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione;a mixture of 4-hexadecyloxy- and4-stearyloxy-2,2,6,6-tetramethylpiperidine; a condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-cyclohexylamino-2,6-dichloro-1,3,5-triazine; a condensate of1,2-bis(3-aminopropylamino)ethane, 2,4,6-trichloro-1,3,5-triazine and4-butylamino-2,2,6,6-tetramethylpiperidine;2-undecyl-7,7,9,9-tetramethyl-1-oxa-3,8-diaza-4-oxospiro[4.5]decane;oxo-piperanzinyl-triazines; a reaction product of7,7,9,9-tetramethyl-2-cycloundecyl-1-oxa-3,8-diaza-4-oxospiro[4.5]decaneand epichlorohydrin; tetrakis(2,2,6,6-tetramethyl-4-piperidyl)butane-1,2,3,4-tetracarboxylate; 1,2,3,4-butanetetracarboxylic acid,tetrakis(1,2,2,6,6-pentamethyl-4-piperidinyl)ester;1,2,3,4-butanetetracarboxylic acid, 1,2,2,6,6-pentamethyl-4-piperdinyltridecylester; 1,2,3,4-butanetetracarboxylic acid,2,2,6,6-tetramethyl-4-piperidinyl tridecyl ester;1,2,3,4-butanetetracarboxylic acid, polymer with2,2,6,6-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]-undecane-3,9-diethano1,1,2,2,6,6-pentamethyl-4-piperdinylester; 1,2,3,4-butanetetracarboxylic acid, polymer with2,2,6,6-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]-undecane-3,9-diethanol,2,2,6,6-tetramethyl-4-piperdinyl ester;bis(1-undecanoxy-2,2,6,6-tetramethylpiperidin-4-yl)carbonate;1-(2-hydroxy-2-methylpropoxy)-2,2,6,6-tetramethyl-4-piperdinol;1-(2-hydroxy-2-methylpropoxy)-4-octadecanoyloxy-2,2,6,6-tetramethylpiperidine;1-(4-octadecanoyloxy-2,2,6,6-tetramethylpiperidin-1yloxy)-2-octadecanoyloxy-2-methylpropane;1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-piperdinol; a reaction productof 1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-piperdinol anddimethylsuccinate;2,2,4,4-tetramethyl-7-oxa-3,20-diazadispiro[5.1.11.2]heneicosan-21-one;the ester of 2,2,6,6-tetramethyl-4-piperidinol with higher fatty acids;3-dodecyl-1-(2,2,6,6-tetramethyl-4-piperidyl)pyrrolidine-2,5-dione;1H-Pyrrole-2,5-dione, 1-octadecyl-, polymer with(1-methylethenyl)benzene and142,2,6,6-tetramethyl-4-piperidinyl)-1H-pyrrole-2,5-dione; piperazinone,1,1′,1″-[1,3,5-triazine-2,4,6-triyltris[(cyclohexylimino)-2,1-ethanediyl]]tris[3,3,5,5-tetramethyl-;piperazinone,1,1′,1″-[1,3,5-triazine-2,4,6-triyltris[(cyclohexylimino)-2,1-ethanediyl]]tris[3,3,4,5,5-pentamethyl-;the reaction product of7,7,9,9-tetramethyl-2-cycloundecyl-1-oxa-3,8-diaza-4-oxospiro[4.5]decaneand epichlorohydrin; the condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-cyclohexylamino-2,6-dichloro-1,3,5-triazine; the condensate of1,2-bis(3-aminopropylamino)ethane, 2,4,6-trichloro-1,3,5-triazine and4-butylamino-2,2,6,6-tetramethylpiperidine; the condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-morpholino-2,6-dichloro-1,3,5-triazine; the condensate of2-chloro-4,6-bis(4-n-butylamino-2,2,6,6-tetramethylpiperidyl)-1,3,5-triazineand 1,2-bis(3-aminopropylamino)ethane; the condensate of2-chloro-4,6-bis(4-n-butylamino-1,2,2,6,6-pentamethylpiperidyl)-1,3,5-triazineand 1,2-bis-(3-aminopropylamino)ethane;2-[(2-hydroxyethyl)amino]-4,6-bis[N-(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl)butylamino-1,3,5-triazine;propanedioic acid,[(4-methoxyphenyl)-methylene]-bis-(1,2,2,6,6-pentamethyl-4-piperidinyl)ester;tetrakis(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate;benzenepropanoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-,1-[2-[3-[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]-1-oxopropoxy]lethyl]-2,2,6,6-tetramethyl-4-piperidinylester;N-(1-octyloxy-2,2,6,6-tetramethylpiperidin-4-yl)-N′-dodecyloxalamide;tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate;1,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid,bis(1,2,2,6,6-pentamethyl-4-piperidinyl):1,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid,bis(2,2,6,6-tetramethyl-4-piperidinyl); the condensate of1-(2-hydroxyethyl)-2,2,6,6-tetramethyl-4-hydroxypiperidine and succinicacid; the condensate ofN,N′-bis(2,2,6,6-tetramethylpiperidin-4-yl)hexamethylenediamine and4-tert-octylamino-2,6-dichloro-1,3,5-triazine;1,2,3,4-butanetetracarboxylic acid, 1,2,2,6,6-pentamethyl-4-piperidinyltridecyl ester;tetrakis(2,2,6,6-tetramethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate;1,2,3,4-butanetetracarboxylic acid, 2,2,6,6-tetramethyl-4-piperidinyltridecyl ester;tetrakis(1,2,2,6,6-pentamethylpiperidin-4-yl)-1,2,3,4-butanetetracarboxylate;mixture of2,2,4,4-tetramethyl-21-oxo-7-oxa-3.20-diazaspiro(5.1.11.2)-heneicosane-20-propanoicacid-dodecylester and2,2,4,4-tetramethyl-21-oxo-7-oxa-3.20-diazaspiro(5.1.11.2)-heneicosane-20-propanoicacid-tetradecylester;1H,4H,5H,8H-2,3a,4a,6,7a,8a-hexaazacyclopenta[def]fluorene-4,8-dione,hexahydro-2,6-bis(2,2,6,6-tetramethyl-4-piperidinyl)-;polymethyl[propyl-3-oxy(2′,2′,6′,6′-tetramethyl-4,4′-piperidinyl)]siloxane;polymethyl[propyl-3-oxy(1′,2′,2′,6′,6′-pentamethyl-4,4′-piperidinyl)]siloxane;copolymer of methylmethacrylate with ethyl acrylate and2,2,6,6-tetramethylpiperidin-4-yl acrylate; copolymer of mixed C₂₀ toC₂₄ alpha-olefins and (2,2,6,6-tetramethylpiperidin-4-yl)succinimide;1,2,3,4-butanetetracarboxylic acid, polymer withβ,β,β′,β′-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diethanol,1,2,2,6,6-pentamethyl-4-piperidinyl ester; 1,2,3,4-butanetetracarboxylicacid, polymer withβ,β,β′,β′-tetramethyl-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-diethanol,2,2,6,6-tetramethyl-4-piperidinyl ester copolymer;1,3-benzenedicarboxamide, N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl;1,1′-(1,10-dioxo-1,10-decanediyl)-bis(hexahydro-2,2,4,4,6-pentamethylpyrimidine;ethane diamide, N-(1-acetyl-2,2,6,6-tetramethylpiperidinyl)-N′-dodecyl;formamide, N,N′-1,6-hexanediylbis[N-(2,2,6,6-tetramethyl-4-piperidinyl);D-glucitol, 1,3:2,4-bis-O-(2,2,6,6-tetramethyl-4-piperidinylidene)-;2,2,4,4-tetramethyl-7-oxa-3,20-diaza-21-oxo-dispiro[5.1.11.2]heneicosane;propanamide,2-methyl-N-(2,2,6,6-tetramethyl-4-piperidinyl)-2-[(2,2,6,6-tetramethyl-4-piperidinyl)amino]-;7-oxa-3,20-diazadispiro[5.1.11.2]heneicosane-20-propanoic acid,2,2,4,4-tetramethyl-21-oxo-, dodecyl ester;N-(2,2,6,6-tetramethylpiperidin-4-yl)-13-aminopropionic acid dodecylester; N-(2,2,6,6-tetramethylpiperidin-4-yl)-N′-aminooxalamide;propanamide,N-(2,2,6,6-tetramethyl-4-piperidinyl)-3-[(2,2,6,6-tetramethyl-4-piperidinyl)amino]-;mixture of 4-hexadecyloxy- and4-stearyloxy-2,2,6,6-tetramethylpiperidine;3-dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione;3-dodecyl-1-(1-ethanoyl-2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione;bis(2,2,6,6-tetramethylpiperidin-4-yl)succinate;bis(1,2,2,6,6-pentamethylpiperidin-4-yl) n-butyl3,5-di-tert-butyl-4-hydroxybenzylmalonate;tris(2,2,6,6-tetramethylpiperidin-4-yl) nitrilotriacetate;1,1′-(1,2-ethanediyl)bis(3,3,5,5-tetramethylpiperazinone);4-benzoyl-2,2,6,6-tetramethylpiperidine;4-stearyloxy-2,2,6,6-tetramethylpiperidine;bis(1,2,2,6,6-pentamethylpiperidyl)-2-n-butyl-2-(2-hydroxy-3,5-di-tert-butylbenzyl)malonate;3-n-octyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decan-2,4-dione;bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl)sebacate;bis(1-octyloxy-2,2,6,6-tetramethylpiperidyl)succinate;8-acetyl-3-dodecyl-7,7,9,9-tetramethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione;3-dodecyl-1-(2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidin-2,5-dione;3-dodecyl-1-(1-ethanoyl-2,2,6,6-tetramethylpiperidin-4-yl)pyrrolidin-2,5-dione;3-dodecyl-1-(1,2,2,6,6-pentamethylpiperidin-4-yl)pyrrolidine-2,5-dione;a mixture of 4-hexadecyloxy- and4-stearyloxy-2,2,6,6-tetramethylpiperidine;2-undecyl-7,7,9,9-tetramethyl-1-oxa-3,8-diaza-4-oxospiro[4.5]decane;1,5-dioxaspiro {5,5}undecane-3,3-dicarboxylic acid,bis(2,2,6,6-tetramethyl-4-piperidinyl) and 1,5-dioxaspiro{5,5}undecane-3,3-dicarboxylic acid,bis(1,2,2,6,6-pentamethyl-4-piperidinyl);N¹-(β-hydroxyethyl)3,3-pentamethylene-5,5-dimethylpiperazin-2-one;N¹-tert-octyl-3,3,5,5-tetramethyl-diazepin-2-one;N¹-tert-octyl-3,3-pentamethylene-5,5-hexamethylene-diazepin-2-one;N¹-tert-octyl-3,3-pentamethylene-5,5-dimethylpiperazin-2-one;trans-1,2-cyclohexane-bis-(N¹-5,5-dimethyl-3,3-pentamethylene-2-piperazinone;trans-1,2-cyclohexane-bis-(N¹-3,3,5,5-dispiropentamethylene-2-piperazinone);N¹-isopropyl-1,4-diazadispiro-(3,3,5,5)pentamethylene-2-piperazinone;N¹-isopropyl-1,4-diazadispiro-3,3-pentamethylene-5,5-tetramethylene-2-piperazinone;N¹-isopropyl-5,5-dimethyl-3,3-pentamethylene-2-piperazinone ;trans-1,2-cyclohexane-bis-N¹-(dimethyl-3,3-pentamethylene-2-piperazinone);N¹-octyl-5,5-dimethyl-3,3-pentamethylene-1,4-diazepin-2-one;N¹-octyl-1,4-diazadispiro-(3,3,5,5)pentamethylene-1,5-diazepin-2-one;and mixtures thereof.
 7. The thermal and UV light stabilizingcomposition according to claim 4, wherein the hindered hydroxybenzoatecompound is selected from the group consisting of2,4-di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate; hexadecyl3,5-di-tert-butyl-4-hydroxybenzoate; octadecyl3,5-di-tert-butyl-4-hydroxybenzoate; octyl3,5-di-tert-butyl-4-hydroxybenzoate; tetradecyl3,5-di-tert-butyl-4-hydroxybenzoate; behenylyl3,5-di-tert-butyl-4-hydroxybenzoate; 2-methyl-4,6-di-tert-butylphenyl3,5-di-tert-butyl-4-hydroxybenzoate and butyl3-[3-t-butyl-4-(3,5-di-t-butyl-4-hydroxybenzoyloxy)phenyl]propionate;and mixtures thereof.
 8. The thermal and UV light stabilizingcomposition according to claim 4, wherein the at least one hinderedphenol compound is chosen from:(1,3,5-Tris(4-t-butyl-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-triazine-2,4,6-(1H,3H,5H)-trione;1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione;1,1,3-Tris(2′-methyl-4′-hydroxy-5′-t-butylphenyl)butane; Triethyleneglycol bis[3-(3-t-butyl-4-hydroxy-5-methylphenyl)propionate];4,4′-Thiobis(2-t-butyl-5-methylphenol); 2,2′-Thiodiethylenebis[3-(3-t-butyl-4-hydroxyl-5-methylphenyl)propionate]; Octadecyl3-(3′-t-butyl-4′-hydroxy-5′-methylphenyl)propionate;Tetrakismethylene(3-t-butyl-4-hydroxy-5-methylhydrocinnamate)methane;N,N′-Hexamethylenebis[3-(3-t-butyl-4-hydroxy-5-methylphenyl)propionamide];Di(4-tertiarybutyl-3-hydroxy-2,6-dimethyl benzyl) thiodipropionate; andoctadecyl 3,5-di-(tert)-butyl-4-hydroxyhydrocinnamate; and mixturesthereof.
 9. The thermal and UV light stabilizing composition accordingto claim 4, wherein the hindered arylalkyl phosphite is selected fromthe group consisting ofbis-(2,6-di-t-butyl-4-methlphenyl)pentaerythritol diphosphite,(bis-(2,4-dicumylphenyl)pentaerythritol diphosphite,bis-(2,4-di-t-butyl-phenyl)pentaerythritol diphosphite, andbis-(2,4,6-tri-t-butyl-phenyl)pentaerythritol diphosphite; and mixturesthereof.
 10. The thermal and UV light stabilizing composition accordingto claim 4, wherein the trisarylphosphite is selected from the groupconsisting of tris-(2,4-di-t-butylphenyl)phosphite, tris(4-nonylphenyl)phosphite and triphenyl phosphite; and mixtures thereof.
 11. The thermaland UV light stabilizing composition according to claim 2, wherein: theortho-hydroxyl tris-aryl-s-triazine compound is2-[4,6-bis(2,4-dimethylphenyl)-1,3,5-triazin-2-yl]-5-(octyloxy) phenol;the hindered amine light stabilizer compound is a mixture of fattyacids, and C₁₂-C_(21,) C₁₈ unsaturated2,2,6,6,-tetramethyl-4-piperidinyl esters; the hindered hydroxybenzoatecompound is 3,5-di-tert-butyl-4-hydroxybenzoic acid, hexadecyl ester;the acid scavenger is selected from the group consisting of magnesiumoxide, aluminum oxide, magnesium hydroxide, aluminum hydroxide,carbonates thereof and mixtures thereof; the phosphite compound isbis(2,4-dicumylphenyl) pentaerythritol diphosphite); the hindered phenolantioxidant compound is 1,3,5-Tris (4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-triazine-2,4,6-(1H, 3H, 5H)-trione; and the thioester ispentaerythrithol tetrakis-(3-dodecylthiopropionate) or Distearylthiodipropionate.
 12. A composition comprising: a thermal and UV lightstabilizing composition according to claim 1; and a material to bestabilized.
 13. A composition according to claim 12, wherein thematerial to be stabilized is selected from the group consisting of:polyolefins, polyesters, polyethers, polyketones, polyamides, naturaland synthetic rubbers, polyurethanes, polystyrenes, high-impactpolystyrenes, polyacrylates, polymethacrylates, polyacetals,polyacrylonitriles, polybutadienes, polystyrenes,acrylonitrile-butadiene-styrene, styrene acrylonitrile, acrylate styreneacrylonitrile, cellulosic acetate butyrate, cellulosic polymers,polyimides, polyamideimides, polyetherimides, polyphenylsulfides,polyphenyloxidepolysulfones, polyethersulfones, polyvinylchlorides,polycarbonates, polyketones, aliphatic polyketones, thermoplasticolefins, aminoresin cross-linked polyacrylates and polyesters,polyisocyanate cross-linked polyesters and polyacrylates,phenol/formaldehyde, urea/formaldehyde and melamine/formaldehyde resins,drying and non-drying alkyd resins, alkyd resins, polyester resins,acrylate resins cross-linked with melamine resins, urea resins,isocyanates, isocyanurates, carbamates, and epoxy resins, cross-linkedepoxy resins derived from aliphatic, cycloaliphatic, heterocyclic andaromatic glycidyl compounds, which are cross-linked with anhydrides oramines, polysiloxanes, Michael addition polymers, amines, blocked amineswith activated unsaturated and methylene compounds, ketimines withactivated unsaturated and methylene compounds, polyketimines incombination with unsaturated acrylic polyacetoacetate resins,polyketimines in combination with unsaturated acrylic resins, radiationcurable compositions, epoxymelamine resins, organic dyes, cosmeticproducts, cellulose-based paper formulations, photographic film paper,fibers, waxes, inks, and blends thereof.
 14. The composition accordingto claim 12, wherein the material to be stabilized is selected from thegroup consisting of thermoplastic olefins,acrylonitrile-butadiene-styrene, polyesters, polyvinylchloride,polyamides, polyurethanes, or homo- and copolymers of propylene,isobutylene, butene, methylpentene, hexene, heptene, octene, isoprene,butadiene, hexadiene, dicyclopentadiene, ethylidene cyclopentene andnorbornene.
 15. The composition according to claim 12, wherein thematerial to be stabilized is vinyl siding, vinyl siding trim, a shutter,a gable vent, an eave, fascia, a soffit, a molding, a roofing shingle, aroofing underlayment, a roofing membrane, a batten systems, a battenextender, flashing, a tile pan, a ridge vent, a weather block, a hip andridge system, an eave riser, a taper strip, a gable end wedge, raketrim, a geomembrane, a composite deck material, a railing or a windowframe.
 16. The composition according to claim 12, wherein thecomposition is a master batch and the thermal and UV light stabilizingcomposition is present in an amount from about 10 wt. % to about 80 wt.% based on a total weight of the master batch composition, and thematerial to be stabilized is present in an amount from about 20 wt. % toabout 90 wt. % based on the total weight of the master batchcomposition.
 17. The composition according to claim 12, wherein thethermal and UV light stabilizing composition is present in an amountfrom 0.01 wt. % to 5 wt. % based on a total weight of the stabilizedcomposition.
 18. The composition according to claim 17, wherein anamount of the ortho-hydroxyl tris-aryl-s-triazine compound is from about0.002 wt. % to about 0.50 wt. %, an amount of the hindered amine lightstabilizer compound is from about 0.01 wt. % to about 1.20 wt. %, anamount of the hindered hydroxybenzoate compound is from about 0.01 wt. %to about 1.20 wt. %, an amount of the acid scavenger is from about 0.001wt. % to about 0.50 wt. %, an amount of the hindered phenol antioxidantcompound is from about 0.001 wt. % to about 0.50 wt. %, and an amount ofthe phosphite compound is from about 0.005 wt. % to about 1.00 wt. %,based on the total weight of the stabilized composition.
 19. Thecomposition according to claim 12, wherein the thermal and UV lightstabilizing composition further comprises a thioester compound, whereinan amount of the thioester compound is from about 0.001 wt. % to about0.80 wt. %, based on a total weight of the stabilized composition.
 20. Aprocess for preparing a composition according to claim 12, the processcomprising: combining the material to be stabilized with the thermal andUV light stabilizing composition.
 21. The process according to claim 20,wherein the material to be stabilized is selected from the groupconsisting of thermoplastic olefins, acrylonitrile-butadiene-styrene,polyesters, polyvinylchloride, polyamides, polyurethanes, or homo- andcopolymers of propylene, isobutylene, butene, methylpentene, hexene,heptene, octene, isoprene, butadiene, hexadiene, dicyclopentadiene,ethylidene cyclopentene and norbornene.
 22. The process according toclaim 20, wherein the material to be stabilized is vinyl siding, vinylsiding trim, a shutter, a gable vent, an eave, fascia, a soffit, amolding, a roofing shingle, a roofing underlayment, a roofing membrane,a batten systems, a batten extender, flashing, a tile pan, a ridge vent,a weather block, a hip and ridge system, an eave riser, a taper strip, agable end wedge, rake trim, a geomembrane, a composite deck material, arailing or a window frame.
 23. A process for improving processability ofa material selected from the group consisting of polyolefins,polyesters, polyethers, polyketones, polyamides, natural and syntheticrubbers, polyurethanes, polystyrenes, high-impact polystyrenes,polyacrylates, polymethacrylates, polyacetals, polyacrylonitriles,polybutadienes, polystyrenes, acrylonitrile-butadiene-styrene, styreneacrylonitrile, acrylate styrene acrylonitrile, cellulosic acetatebutyrate, cellulosic polymers, polyimides, polyamideimides,polyetherimides, polyphenylsulfides, polyphenyloxidepolysulfones,polyethersulfones, polyvinylchlorides, polycarbonates, polyketones,aliphatic polyketones, thermoplastic olefins, aminoresin cross-linkedpolyacrylates and polyesters, polyisocyanate cross-linked polyesters andpolyacrylates, phenol/formaldehyde, urea/formaldehyde andmelamine/formaldehyde resins, drying and non-drying alkyd resins, alkydresins, polyester resins, acrylate resins cross-linked with melamineresins, urea resins, isocyanates, isocyanurates, carbamates, and epoxyresins, cross-linked epoxy resins derived from aliphatic,cycloaliphatic, heterocyclic and aromatic glycidyl compounds, which arecross-linked with anhydrides or amines, polysiloxanes, Michael additionpolymers, amines, blocked amines with activated unsaturated andmethylene compounds, ketimines with activated unsaturated and methylenecompounds, polyketimines in combination with unsaturated acrylicpolyacetoacetate resins, polyketimines in combination with unsaturatedacrylic resins, radiation curable compositions, epoxymelamine resins,organic dyes, cosmetic products, cellulose-based paper formulations,photographic film paper, fibers, waxes, inks, and blends thereof, theprocess comprising adding a stabilizing amount of a stabilizingcomposition to the material, the stabilizing composition according toclaim 1.